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Lactose

Lactose Structure
Lactose structure
CAS No.
63-42-3
Chemical Name:
Lactose
Synonyms
Lactose;D-LACTOSE;MILK SUGAR;LACTOBIOSE;BETA-LACTOSE;D-Lactose Anhydrous;LACTIN;Lactosum;D-(+)-LACTOSE;Lactosum , anhydrous
CBNumber:
CB8710411
Molecular Formula:
C12H22O11
Molecular Weight:
342.3
MDL Number:
MFCD00151251
MOL File:
63-42-3.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-21 10:31:43
Product description Number Pack Size Price
Lactose (anhydrous) European Pharmacopoeia (EP) Reference Standard A1206000 30 mg $175
Lactose tested according to Ph.Eur. 17814 1kg $226
Anhydrous lactose United States Pharmacopeia (USP) Reference Standard 1356676 100mg $538
Lactose, Anhydrous Pharmaceutical Secondary Standard; Certified Reference Material PHR1025 1g $100
Lactose (anhydrous) European Pharmacopoeia (EP) Reference Standard A1206000 a1206000 $153
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Lactose Properties

Melting point 222.8°C
Boiling point 397.76°C (rough estimate)
Density 1.5300
refractive index 1.5376 (estimate)
storage temp. 2-8°C
solubility Freely but slowly soluble in water, practically insoluble in ethanol (96 per cent).
pka 12.39±0.20(Predicted)
form Powder
color White to Off-white
Odor Mildly sweet taste.
optical activity Alpha form +85.0 → +52.6 Beta form +34.9 → +55.4
Water Solubility 5-10 g/100 mL at 20 ºC
BRN 93796
Stability Stable. Incompatible with strong oxidizing agents.
Major Application cleaning products
cosmetics
food and beverages
personal care
pharmaceutical (small molecule)
Cosmetics Ingredients Functions SKIN CONDITIONING
HUMECTANT
Cosmetic Ingredient Review (CIR) Lactose (63-42-3)
InChI 1S/C12H22O11/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12/h1,4-12,14-21H,2-3H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-/m0/s1
InChIKey DKXNBNKWCZZMJT-JVCRWLNRSA-N
SMILES OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C=O
LogP -3.391 (est)
FDA 21 CFR 168.122; 169.179; 310.545
CAS DataBase Reference 63-42-3(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) LACTOSE
EWG's Food Scores 1
FDA UNII 3SY5LH9PMK
NCI Dictionary of Cancer Terms lactose
NIST Chemistry Reference D-Glucose, 4-o-«beta»-D-galactopyranosyl-(63-42-3)
EPA Substance Registry System Lactose (63-42-3)
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Safety Statements  24/25
WGK Germany  2
RTECS  OD9625000
TSCA  TSCA listed
HS Code  17021100
Storage Class 11 - Combustible Solids
Hazardous Substances Data 63-42-3(Hazardous Substances Data)

Lactose price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich A1206000 Lactose (anhydrous) European Pharmacopoeia (EP) Reference Standard 63-42-3 30 mg $175 2026-03-19 Buy
Sigma-Aldrich 17814 Lactose tested according to Ph.Eur. 63-42-3 1kg $226 2026-03-19 Buy
Sigma-Aldrich 1356676 Anhydrous lactose United States Pharmacopeia (USP) Reference Standard 63-42-3 100mg $538 2026-03-19 Buy
Sigma-Aldrich PHR1025 Lactose, Anhydrous Pharmaceutical Secondary Standard; Certified Reference Material 63-42-3 1g $100 2026-03-19 Buy
Sigma-Aldrich A1206000 Lactose (anhydrous) European Pharmacopoeia (EP) Reference Standard 63-42-3 a1206000 $153 2024-03-01 Buy
Product number Packaging Price Buy
A1206000 30 mg $175 Buy
17814 1kg $226 Buy
1356676 100mg $538 Buy
PHR1025 1g $100 Buy
A1206000 a1206000 $153 Buy

Lactose Chemical Properties,Uses,Production

Chemical Properties

white crystals or powder

Chemical Properties

Anhydrous lactose occurs as white to off-white crystalline particles or powder. Several different brands of anhydrous lactose are commercially available which contain anhydrous b-lactose and anhydrous a-lactose. Anhydrous lactose typically contains 70–80% anhydrous b-lactose and 20–30% anhydrous a-lactose.

Uses

A disaccharide sugar present in milk.

Uses

Lactose is a disaccharide carbohydrate that occurs in mammalian milk except that of the whale and the hippopotamus. it is princi- pally obtained as a cows’ milk derivative. it is also termed milk sugar and it is a reducing sugar consisting of glucose and galactose. its most common commercial form is alpha-monohydrate, with the beta-anhydride form available to a lesser extent. all forms in solution will equilibrate to a beta:alpha ratio of 62.25:37.75 at 0°c. it is about one-sixth as sweet as sugar and is less soluble. it functions as a flow agent, humectant, crystallization control agent, and sweetener. it is used in baked goods for flavor, browning, and tenderizing and in dry mixes as an anticaking agent.

Uses

D-Lactose is used for the culture of lactic acid metabolizing bacteria, lactic acid bacteria. D-Lactose is used to identify and characterized galectins.

Definition

A sugar found in milk. It is a disaccharide composed of glucose and galactose units.

Production Methods

There are two anhydrous forms of lactose: a-lactose and b-lactose. The temperature of crystallization influences the ratio of a- and blactose. The anhydrous forms that are commercially available may exhibit hygroscopicity at high relative humidities. Anhydrous lactose is produced by roller drying a solution of lactose above 93.5°C. The resulting product is then milled and sieved. Two anhydrous a-lactoses can be prepared using special drying techniques: one is unstable and hygroscopic; the other exhibits good compaction properties. However, these materials are not commercially available.

General Description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Air & Water Reactions

Water soluble.

Reactivity Profile

Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides.

Health Hazard

ACUTE/CHRONIC HAZARDS: Lactose should be considered toxic.

Pharmaceutical Applications

Anhydrous lactose is widely used in direct compression tableting applications, and as a tablet and capsule filler and binder. Anhydrous lactose can be used with moisture-sensitive drugs due to its low moisture content. It may also be used in intravenous injections.

Safety

Lactose is widely used in pharmaceutical formulations as a diluent and filler-binder in oral capsule and tablet formulations. It may also be used in intravenous injections. Adverse reactions to lactose are largely due to lactose intolerance, which occurs in individuals with a deficiency of the intestinal enzyme lactase, and is associated with oral ingestion of amounts well over those found in solid dosage forms.

storage

Mold growth may occur under humid conditions (80% RH and above). Lactose may develop a brown coloration on storage, the reaction being accelerated by warm, damp conditions. At 80°C and 80% RH, tablets containing anhydrous lactose have been shown to expand 1.2 times after one day.
Lactose anhydrous should be stored in a well-closed container in a cool, dry place.

Purification Methods

-Lactose crystallises from water below 93.5o as the hydrate which can be dried at 80o/14mm. [Horst Recl Trav Chim, Pays-Bas 72 878 1953, Beilst 17 III/IV 3066.]

Incompatibilities

Lactose anhydrous is incompatible with strong oxidizers. When mixtures containing a hydrophobic leukotriene antagonist and anhydrous lactose or lactose monohydrate were stored for six weeks at 40°C and 75% RH, the mixture containing anhydrous lactose showed greater moisture uptake and drug degradation.
Studies have also shown that in blends of roxifiban acetate (DMP-754) and lactose anhydrous, the presence of lactose anhydrous accelerated the hydrolysis of the ester and amidine groups.
Lactose anhydrous is a reducing sugar with the potential to interact with primary and secondary amines (Maillard reaction) when stored under conditions of high humidity for extended periods.

Regulatory Status

GRAS listed. Included in the FDA Inactive Ingredients Database (IM, IV: powder for injection solution; IV and sublingual preparations; oral: capsules and tablets; powder for inhalation; vaginal). Included in nonparenteral and parenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

Lactose Preparation Products And Raw materials

Raw materials

MILK Α-protein Whey

Preparation Products

Whev’redliced lactose Abamectin Lactulose Pepsin L-carnitine
LACTITOL Whey CARAMEL Whey saIts thyroid powder

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Lactose Suppliers

Global( 707)Suppliers
Supplier Tel Email Country ProdList Advantage
Shandong Zhishang New Material Co., Ltd.
+8617653113209 sales002@sdzschem.com China 1497 58
Aurora Industry Co., Ltd.
+86-13591747876 +86-13591747876; alex1_auco@126.com China 300 58
Hebei Chuanghai Biotechnology Co., Ltd 		+8615350571055 Sibel@chuanghaibio.com China 8738 58
RongNa Biotechnology Co.,Ltd 		+86-86-13583358881 +8618560316533 Brad@rongnabiotech.com China 3364 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-86-13131129325 +8613131129325 sales1@chuanghaibio.com China 5235 58
Hebei Dangtong Import and export Co LTD 		+86-86-4001020630 +8619831957301 admin@hbdangtong.com China 1000 58
Henan Bao Enluo International TradeCo.，LTD 		+86-17331933971 deasea125996@gmail.com China 2472 58
Zibo Wei Bin Import & Export Trade Co. Ltd. 		+86-0533-2091136 +8613864437655 ziboweibinmaoyi@163.com China 100 58
Anhui Ruihan Technology Co., Ltd 		+8617756083858 daisy@anhuiruihan.com China 973 58
Shaanxi TNJONE Pharmaceutical Co., Ltd 		+8618092446649 sarah@tnjone.com China 1143 58
Supplier Advantage
Shandong Zhishang New Material Co., Ltd.
58
Aurora Industry Co., Ltd.
58
Hebei Chuanghai Biotechnology Co., Ltd 		58
RongNa Biotechnology Co.,Ltd 		58
Hebei Chuanghai Biotechnology Co,.LTD 		58
Hebei Dangtong Import and export Co LTD 		58
Henan Bao Enluo International TradeCo.，LTD 		58
Zibo Wei Bin Import & Export Trade Co. Ltd. 		58
Anhui Ruihan Technology Co., Ltd 		58
Shaanxi TNJONE Pharmaceutical Co., Ltd 		58

Related articles

  • Lactose: A Comprehensive Overview
  • Lactose, a disaccharide sugar derived primarily from milk, has played a pivotal role in the fields of food science and pharmac....
  • May 22，2024

Related Qustion

Ask a question
Q:What are the effects of lactose? Is it harmful to health?Zora - Apr 20，2026
A: Lactose is sometimes referred to as "milk sugar" because it is only found naturally in the milk of mammals—including cows, goats and humans. Lactose digestion occurs in the small intestine with the help of the enzyme known as lactase. Lactase breaks down lactose into the monosaccharides galactose and glucose, which makes them available for absorption. Undigested lactose also draws water into the intestinal lumen through its osmotic effect, which increases motility and can cause diarrhea. Symptoms include abdominal pain, bloating, and flatulence. Lactose has several applications in the food industry. Because of its physiological properties, it is widely used in sweets, confectionery, bread, and sausages; lactose provides good texture and binds water and color.

View Lastest Price from Lactose manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Lactose pictures 2026-04-28 Lactose
63-42-3
 0.99 RongNa Biotechnology Co.,Ltd
Lactose pictures 2026-04-28 Lactose
63-42-3
 US $10.00 / ASSAYS 1ASSAYS 99% 1 ton RongNa Biotechnology Co.,Ltd
Lactose pictures 2026-04-28 Lactose
63-42-3
 US $999.00-666.00 / kg 1kg 99% 5000 HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
  • Lactose pictures
  • Lactose
    63-42-3
  • 0.99
  • RongNa Biotechnology Co.,Ltd
  • Lactose pictures
  • Lactose
    63-42-3
  • US $10.00 / ASSAYS
  • 99%
  • RongNa Biotechnology Co.,Ltd
  • Lactose pictures
  • Lactose
    63-42-3
  • US $999.00-666.00 / kg
  • 99%
  • HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD

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Aletobiose Galactinum lactose,anhydrous Osmolactan Saccharum lactin saccharumlactin : 4-(beta-D-Galactosido)-D-glucose, D-(+)-Lactose Top Supplier of Lactose Lactosum Lactose Joyce LACTIN LACTOSE BETA-LACTOSE 4-(B-D-GALACTOSIDO)-D-GLUCOSE 4-O-BETA-GALACTOPYRANOSYL-D-GLUCOSE SUGAR MILK MILK SUGAR LACTOSE ANHYDROUS, PH EUR D-(+)-LACTOSE (ANHYDROUS) EP STANDARD LactoseHydrate D-Glucose, 4-O-.beta.-D-galactopyranosyl- ANHYDROUSLACTOSE,NF LACTOSE,ANHYDROUS,FCC (2R,3S,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3R,4S,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-oxane-3,4,5-triol D-Glucose, 4-O-b-D-galactopyranosyl (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)tetrahydropyran-3-yl]oxy-tetrahydropyran-3,4,5-triol Lactosum , anhydrous D-Lactose ,98% Lactose,Lactosum anhydricum Anhydrous Lactose (100 mg) 4-o-beta-d-galactopyranosyl-d-glucos 4-(beta-D-Galactosido)-D-glucose Lactosum anhydricum SynonyMs: 4-(beta-D-Galactosido)-D-glucose, D-(+)-Lactose Lactosum , anhydrous, AR,98% Lactose Manufacturer Carvedilol-N-&beta Lactosum , anhydrous, Ph Eur,USP,NF,JP Anhydrous Lactose for Identification RS Lactose (anhydrous) CRS D-Glucose, 4-O-β-D-galactopyranosyl- (3R,4R,5S,6R)-6-(hydroxymethyl)-5-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2,3,4-triol (2R,3R,4R,5R)-2,3,5,6-tetrahydroxy-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal hot selling Lactose Lactose USP/EP/BP D-Lactose Lactosum , anhydrous 4-O-β-D-galactopyranosyl-D-glucopyranose (lactose) Sweeteners Lactose Monohydrate Food Grade D-Lactose CAS?63-42-3?Lactose medicinal lactose Lactose Fast Flo Pharma Grade Anhydrous Lactose (1356676) α-D-(+)-Lactose Lactose 200 Mesh D-anhydrous lactose Lactose(Galb1, 4Glc) Lactose anhydrous substance D-Lactose in Water