MilliporeSigma
All Photos(2)

Documents

L3625

Sigma-Aldrich

α-Lactose monohydrate

≥99% total lactose basis (GC)

Sign Into View Organizational & Contract Pricing

Synonym(s):
β-D-Gal-(1→4)-α-D-Glc, 4-O-β-D-Galactopyranosyl-α-D-glucose, Milk sugar
Empirical Formula (Hill Notation):
C12H22O11 · H2O
CAS Number:
Molecular Weight:
360.31
MDL number:
PubChem Substance ID:
NACRES:
NA.25

biological source

bovine milk

Assay

≥99% total lactose basis (GC)

form

powder

impurities

≤0.05% Glucose
≤4% β-lactose

color

white to off-white

mp

219  °C ((426 °F ))

solubility

water: 100 mg/mL, clear, colorless

storage temp.

room temp

SMILES string

[H]O[H].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

1S/C12H22O11.H2O/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;1H2/t3-,4-,5+,6+,7-,8-,9-,10-,11+,12+;/m1./s1

InChI key

WSVLPVUVIUVCRA-KPKNDVKVSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
L2643L878347287-U
α-Lactose monohydrate ≥99% total lactose basis (GC)

Sigma-Aldrich

L3625

α-Lactose monohydrate

-
α-Lactose monohydrate suitable for cell culture, BioReagent

Sigma-Aldrich

L2643

α-Lactose monohydrate

-
α-Lactose monohydrate BioXtra, ≥99% total lactose basis (GC)

Sigma-Aldrich

L8783

α-Lactose monohydrate

Premium Grade
Lactose Monohydrate analytical standard

Supelco

47287-U

Lactose Monohydrate

-
assay

≥99% total lactose basis (GC)

assay

≥99% total lactose basis (GC)

assay

≥99% total lactose basis (GC)

assay

-

form

powder

form

powder

form

powder

form

-

impurities

≤0.05% Glucose, ≤4% β-lactose

impurities

≤0.05% Glucose, ≤4% β-lactose

impurities

≤0.01% Phosphorus (P), ≤0.1% Insoluble matter

impurities

-

color

white to off-white

color

-

color

white to off-white

color

-

mp

219  °C ((426 °F ))

mp

-

mp

219  °C ((426 °F ))

mp

-

Biochem/physiol Actions

Lactose is a dissacharide formed by the condensation of one galactose and one glucose molecule. Lactose is the major sugar in the milk of most species, typically present between 2-8%.
alpha-Lactose is the primary sugar present in milk and the main energy source to a newborn mammalian through its mother′s milk. It is digested by the intestinal lactase (EC 3.2.1.108), an enzyme expressed in newborns. The enzyme′s activity declines following weaning which can lead to lactose intolerance in adult mammals.

Other Notes

To gain a comprehensive understanding of our extensive range of Disaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 7

1 of 7

Lactose (anhydrous) European Pharmacopoeia (EP) Reference Standard

A1206000

Lactose (anhydrous)

Lactose monohydrate United States Pharmacopeia (USP) Reference Standard

USP

1356701

Lactose monohydrate

Lactose monohydrate European Pharmacopoeia (EP) Reference Standard

Y0001750

Lactose monohydrate

Sigma-Aldrich

Sigma-Aldrich

L7634

α-Lactose-Agarose

Millipore

Millipore

1.07657

Lactose monohydrate

Lactose, Anhydrous Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1025

Lactose, Anhydrous

Lactose monohydrate powder, EMPROVE® ESSENTIAL, Ph. Eur., BP, ChP, JP, NF

SAFC

1.07656

Lactose monohydrate

Helena Montanuy et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 26(12), 3044-3057 (2020-02-02)
Fanconi anemia rare disease is characterized by bone marrow failure and a high predisposition to solid tumors, especially head and neck squamous cell carcinoma (HNSCC). Patients with Fanconi anemia with HNSCC are not eligible for conventional therapies due to high
Gwenola Le Dréan et al.
Nutrients, 11(9) (2019-08-24)
Oligosaccharides (OS) are commonly added to infant formulas, however, their physiological impact, particularly on adult health programming, is poorly described. In adult animals, OS modify microbiota and stimulate colonic fermentation and enteroendocrine cell (EEC) activity. Since neonatal changes in microbiota
Johannes Gursch et al.
Journal of pharmaceutical sciences, 104(10), 3481-3489 (2015-07-07)
Over the last years, continuous manufacturing has created significant interest in the pharmaceutical industry. Continuous filtration at low flow rates and high solid loadings poses, however, a significant challenge. A commercially available, continuously operating, dynamic cross-flow filtration device (CFF) is
Sha Liu et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 96, 132-142 (2015-07-30)
Co-administration of an inhaled corticosteroid and long acting beta agonist for chronic obstructive pulmonary disease has reduced mortality compared to either drug alone. This combination reduces exacerbations, hospitalization, emergency department visits and health care costs. A novel fixed-dose combination of

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service