Milk Composition Database: Showing metabocard for Alpha-Lactose (BMDB0000186)

Identification Taxonomy Physical properties Spectra Concentrations Links References XML

Record Information

Version

1.0

Creation Date

2016-09-30 22:20:38 UTC

Update Date

2020-06-04 22:55:40 UTC

MCDB ID

BMDB0000186

Secondary Accession Numbers

BMDB00186

Metabolite Identification

Common Name

Alpha-Lactose

Description

Alpha-Lactose, also known as anhydrous lactose or tablettose, belongs to the class of organic compounds known as o-glycosyl compounds. These are glycoside in which a sugar group is bonded through one carbon to another group via a O-glycosidic bond. Alpha-Lactose exists as a solid, possibly soluble (in water), and an extremely weak basic (essentially neutral) compound (based on its pKa) molecule. Alpha-Lactose exists in all living organisms, ranging from bacteria to humans. Alpha-Lactose participates in a number of enzymatic reactions, within cattle. In particular, Alpha-Lactose can be converted into melibiose and D-galactose through the action of the enzyme Alpha-galactosidase a. In addition, Alpha-Lactose can be converted into D-galactose through the action of the enzyme Beta-galactosidase. In cattle, Alpha-lactose is involved in the metabolic pathway called the galactose metabolism pathway. Alpha-Lactose is a potentially toxic compound.

Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
1-beta-D-Galactopyranosyl-4-alpha-D-glucopyranose	ChEBI
4-O-beta-D-Galactopyranosyl-alpha-D-glucopyranose	ChEBI
Anhydrous lactose	ChEBI
beta-D-Galp-(1->4)-alpha-D-GLCP	ChEBI
Lactose	ChEBI
Milk sugar	ChEBI
1-b-D-Galactopyranosyl-4-a-D-glucopyranose	Generator
1-Β-D-galactopyranosyl-4-α-D-glucopyranose	Generator
4-O-b-D-Galactopyranosyl-a-D-glucopyranose	Generator
4-O-Β-D-galactopyranosyl-α-D-glucopyranose	Generator
b-D-Galp-(1->4)-a-D-GLCP	Generator
Β-D-galp-(1->4)-α-D-GLCP	Generator
a-Lactose	Generator
Α-lactose	Generator
(+)-Lactose	HMDB
1-beta-delta-Galactopyranosyl-4-alpha-delta-glucopyranose	HMDB
4-O-Hexopyranosylhexose	HMDB
Aletobiose	HMDB
Dilactose	HMDB
Fast-flo lactose	HMDB
Flowlac 100	HMDB
Galactinum	HMDB
GLC-(4-1)Gal	HMDB
Granulac 140m	HMDB
Lactin	HMDB
Lactin (carbohydrate)	HMDB
Lactobiose	HMDB
Lactohale 300	HMDB
Lactose anhydride	HMDB
Lactose fast-flo	HMDB
Osmolactan	HMDB
Pharmatosa DCL 21	HMDB
Pharmatose 21	HMDB
Pharmatose 325m	HMDB
Pharmatose DCL 15	HMDB
Prismalac	HMDB
Respitose ML 003	HMDB
Respitose SV 003	HMDB
Saccharum lactin	HMDB
Sachelac	HMDB
Sorbalac 400	HMDB
Sorbolac 400	HMDB
Spherolac	HMDB
Super-tab	HMDB
Tablettose	HMDB
Tablettose 70	HMDB
Tablettose 80	HMDB
Zeparox ep	HMDB
Lactose, anhydrous	HMDB

Chemical Formula

C₁₂H₂₂O₁₁

Average Molecular Weight

342.2965

Monoisotopic Molecular Weight

342.116211546

IUPAC Name

(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-{[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxane-3,4,5-triol

Traditional Name

α-lactose

CAS Registry Number

63-42-3

SMILES

OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)[C@@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O

InChI Identifier

InChI=1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3-,4-,5+,6+,7-,8-,9-,10-,11+,12+/m1/s1

InChI Key

GUBGYTABKSRVRQ-XLOQQCSPSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as o-glycosyl compounds. These are glycoside in which a sugar group is bonded through one carbon to another group via a O-glycosidic bond.

Kingdom

Organic compounds

Super Class

Organic oxygen compounds

Class

Organooxygen compounds

Sub Class

Carbohydrates and carbohydrate conjugates

Direct Parent

O-glycosyl compounds

Alternative Parents

Substituents

O-glycosyl compound
Disaccharide
Oxane
Secondary alcohol
Hemiacetal
Oxacycle
Organoheterocyclic compound
Polyol
Acetal
Hydrocarbon derivative
Primary alcohol
Alcohol
Aliphatic heteromonocyclic compound

Molecular Framework

Aliphatic heteromonocyclic compounds

External Descriptors

lactose (CHEBI:36219 )

Physical Properties

State

Solid

Experimental Properties

Property	Value	Reference
Melting Point	201 - 202 °C	Not Available
Boiling Point	Not Available	Not Available
Water Solubility	195 mg/mL at 20 °C	Not Available
LogP	Not Available	Not Available

Predicted Properties

Property	Value	Source
logP	-3	ALOGPS
logP	-4.7	ChemAxon
logS	0.23	ALOGPS
pKa (Strongest Acidic)	11.25	ChemAxon
pKa (Strongest Basic)	-3	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	11	ChemAxon
Hydrogen Donor Count	8	ChemAxon
Polar Surface Area	189.53 Å²	ChemAxon
Rotatable Bond Count	4	ChemAxon
Refractivity	68.34 m³·mol⁻¹	ChemAxon
Polarizability	30.92 Å³	ChemAxon
Number of Rings	2	ChemAxon
Bioavailability	0	ChemAxon
Rule of Five	No	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	Deposition Date	View
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (8 TMS)	splash10-0uxs-0972000000-af8ca1bf1faa3d01a08d	2014-06-16	View Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (8 TMS; 1 MEOX)	splash10-00di-9741000000-a61bf0223a1683f0402e	2014-06-16	View Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (8 TMS; 1 MEOX)	splash10-00di-9641000000-12611bfab50cb066e8af	2014-06-16	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-03e9-4897000000-332d470623cd7f1e1ced	2017-09-01	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (4 TMS) - 70eV, Positive	splash10-014i-3513539000-d702fa4adb45f44530b6	2017-10-06	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_3_3) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_3_16) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_4_2) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_4_10) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_4_11) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_4_12) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_4_20) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_4_32) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_4_33) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS ("Alpha-Lactose,3TBDMS,#3" TMS) - 70eV, Positive	Not Available	2021-10-14	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_3) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_4) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_5) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_6) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_7) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_8) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_2_1) - 70eV, Positive	Not Available	2021-11-05	View Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)	splash10-03di-0901000000-bcb7aaa42261d980d488	2012-07-24	View Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)	splash10-000f-9300000000-1bc18b05388cd2213573	2012-07-24	View Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)	splash10-01p9-9000000000-4483af567feecb34a651	2012-07-24	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-03gl-0907000000-a1de7813fbe8b5258c10	2017-09-01	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-03e9-0900000000-79cc5059a3f338e8c1dd	2017-09-01	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-03di-3900000000-851d0bc84d91b6e09579	2017-09-01	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-002f-0749000000-af1d18f2bc3ab8e02883	2017-09-01	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0200-2902000000-67218697344afb9e70fa	2017-09-01	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-01td-4900000000-40aa2d8125769803cfbb	2017-09-01	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-000x-1069000000-9cd867711bca0eecf935	2021-09-23	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0006-9365000000-65403961bfb5e35eaa0d	2021-09-23	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-000l-9200000000-0de9785c1c5df1430dd2	2021-09-23	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0006-0109000000-9d0f9a68a67bafd734ab	2021-09-24	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-01rw-3898000000-7f495a1bcfdbed6466c4	2021-09-24	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-01ti-9210000000-b8a83657f0266d372bee	2021-09-24	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 500 MHz, H₂O, experimental)	Not Available	2012-12-04	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 125 MHz, H₂O, experimental)	Not Available	2012-12-04	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	Not Available	2021-09-16	View Spectrum
1D NMR	¹³C NMR Spectrum (1D, 400 MHz, H₂O, experimental)	Not Available	2021-10-10	View Spectrum
2D NMR	[¹H, ¹H]-TOCSY. Unexported temporarily by An Chi on Oct 15, 2021 until json or nmrML file is generated. 2D NMR Spectrum (experimental)	Not Available	2012-12-04	View Spectrum
2D NMR	[¹H, ¹³C]-HSQC NMR Spectrum (2D, 400 MHz, H₂O, experimental)	Not Available	2012-12-05	View Spectrum

Concentrations

Status	Value	Reference	Details
Detected and Quantified	124636 - 150268 uM	PMID: 22098372	details
Detected and Quantified	134970 +/- 6719 uM	Carbohydrate Poly...	details
Detected and Quantified	116857 - 146072 uM	International Dai...	details
Detected and Quantified	131172 uM	PMID: 9718493	details
Detected and Quantified	135554 uM	PMID: 9718493	details
Detected and Quantified	138768 uM	PMID: 9718493	details
Detected and Quantified	139645 uM	PMID: 9718493	details
Detected and Quantified	140522 uM	PMID: 9718493	details
Detected and Quantified	142858 uM	PMID: 9718493	details
Detected and Quantified	143151 uM	PMID: 9718493	details
Detected and Quantified	143735 uM	PMID: 9718493	details
Detected and Quantified	144027 uM	PMID: 9718493	details
Detected and Quantified	144319 uM	PMID: 9718493	details
Detected and Quantified	145780 uM	PMID: 9718493	details
Detected and Quantified	134970 +/- 1169 uM	PMID: 23040012	details
Detected and Quantified	137600 +/- 2045 uM	PMID: 23040012	details
Detected and Quantified	138768 +/- 1169 uM	PMID: 23040012	details
Detected and Quantified	139645 +/- 876 uM	PMID: 23040012	details
Detected but not Quantified	Not Applicable	PMID: 23182357	details
Detected and Quantified	19 uM	PMID: 25087032	details
Detected and Quantified	134386 uM	PMID: 11242449	details
Detected and Quantified	124736 - 153216 uM	PMID: 22098372	details
Detected and Quantified	45792 - 61243 uM	PMID: 20338431	details
Detected and Quantified	137892 uM	Fooddata+, T...	details
Detected and Quantified	137892 uM	Fooddata+, T...	details
Detected and Quantified	139060 uM	Fooddata+, T...	details
Detected and Quantified	138768 uM	Fooddata+, T...	details
Detected and Quantified	139060 uM	Fooddata+, T...	details
Detected and Quantified	134678 uM	Fooddata+, T...	details
Detected and Quantified	134970 uM	Fooddata+, T...	details
Detected and Quantified	134970 uM	Fooddata+, T...	details
Detected and Quantified	117931 +/- 5096 uM	PMID: 30994344	details
Detected and Quantified	120445 +/- 4407 uM	PMID: 30994344	details
Detected and Quantified	113883 +/- 3432 uM	PMID: 30994344	details
Detected and Quantified	122036 +/- 8571 uM	PMID: 30994344	details
Detected and Quantified	109180 +/- 4189 uM	PMID: 29642378	details
Detected and Quantified	103625 +/- 5268 uM	PMID: 29642378	details
Detected and Quantified	109682 +/- 4836 uM	PMID: 29642378	details
Detected and Quantified	145196 +/- 3214 uM	RAJAN SHARMA YUDH...	details
Detected and Quantified	119779 +/- 2921 uM	Tommaso R.I. Cata...	details

External Links

HMDB ID

HMDB0000186

DrugBank ID

Not Available

Phenol Explorer Compound ID

Not Available

FoodDB ID

KNApSAcK ID

Chemspider ID

KEGG Compound ID

BioCyc ID

BiGG ID

Wikipedia Link

Not Available

METLIN ID

267

PubChem Compound

84571

PDB ID

Not Available

ChEBI ID

36219

References

Synthesis Reference

Ruffing, Anne; Mao, Zichao; Ruizhen Chen, Rachel. Metabolic engineering of Agrobacterium sp. for UDP-galactose regeneration and oligosaccharide synthesis. Metabolic Engineering (2006), 8(5), 465-473.

Material Safety Data Sheet (MSDS)

Download (PDF)

General References

Klein MS, Almstetter MF, Schlamberger G, Nurnberger N, Dettmer K, Oefner PJ, Meyer HH, Wiedemann S, Gronwald W: Nuclear magnetic resonance and mass spectrometry-based milk metabolomics in dairy cows during early and late lactation. J Dairy Sci. 2010 Apr;93(4):1539-50. doi: 10.3168/jds.2009-2563. [PubMed:20338431 ]
Klein MS, Buttchereit N, Miemczyk SP, Immervoll AK, Louis C, Wiedemann S, Junge W, Thaller G, Oefner PJ, Gronwald W: NMR metabolomic analysis of dairy cows reveals milk glycerophosphocholine to phosphocholine ratio as prognostic biomarker for risk of ketosis. J Proteome Res. 2012 Feb 3;11(2):1373-81. doi: 10.1021/pr201017n. Epub 2011 Dec 9. [PubMed:22098372 ]
Jensen HB, Poulsen NA, Andersen KK, Hammershoj M, Poulsen HD, Larsen LB: Distinct composition of bovine milk from Jersey and Holstein-Friesian cows with good, poor, or noncoagulation properties as reflected in protein genetic variants and isoforms. J Dairy Sci. 2012 Dec;95(12):6905-17. doi: 10.3168/jds.2012-5675. Epub 2012 Oct 3. [PubMed:23040012 ]
Auldist MJ, Walsh BJ, Thomson NA: Seasonal and lactational influences on bovine milk composition in New Zealand. J Dairy Res. 1998 Aug;65(3):401-11. [PubMed:9718493 ]
Sundekilde UK, Poulsen NA, Larsen LB, Bertram HC: Nuclear magnetic resonance metabonomics reveals strong association between milk metabolites and somatic cell count in bovine milk. J Dairy Sci. 2013 Jan;96(1):290-9. doi: 10.3168/jds.2012-5819. Epub 2012 Nov 22. [PubMed:23182357 ]
Sundekilde UK, Gustavsson F, Poulsen NA, Glantz M, Paulsson M, Larsen LB, Bertram HC: Association between the bovine milk metabolome and rennet-induced coagulation properties of milk. J Dairy Sci. 2014 Oct;97(10):6076-84. doi: 10.3168/jds.2014-8304. Epub 2014 Jul 30. [PubMed:25087032 ]
Gopal PK, Gill HS: Oligosaccharides and glycoconjugates in bovine milk and colostrum. Br J Nutr. 2000 Nov;84 Suppl 1:S69-74. [PubMed:11242449 ]
O'Callaghan TF, Vazquez-Fresno R, Serra-Cayuela A, Dong E, Mandal R, Hennessy D, McAuliffe S, Dillon P, Wishart DS, Stanton C, Ross RP: Pasture Feeding Changes the Bovine Rumen and Milk Metabolome. Metabolites. 2018 Apr 6;8(2). pii: metabo8020027. doi: 10.3390/metabo8020027. [PubMed:29642378 ]
I.M.P.L.V.O Ferreira, A.M.P Gomes, M.A Ferreira (1998). Carbohydrate Polymers 37 (1998) 225-229. Carbohydrate Polymers.
R. Mehra, P. Kelly (2006). International Dairy Journal 16 (2006) 1334-1340. International Dairy Journal.
A. Foroutan et al. (2019). A. Foroutan et al. The Chemical Composition of Commercial Cow's Milk (in preparation). Journal of Agricultural and Food Chemistry.
Fooddata+, The Technical University of Denmark (DTU) [Link]

Showing metabocard for Alpha-Lactose (BMDB0000186)

Structure for BMDB0000186 (Alpha-Lactose)