Lactose

Catalog	BBC63423
CAS	63-42-3
Structure
Description	Lactose is a type of sugar found in milk and milk products. It is composed of two simple sugar molecules, glucose and galactose, joined together by a chemical bond. Lactose is broken down in the body by the enzyme lactase, which is produced in the small intestine.
Synonyms	Galβ1, 4Glc
IUPAC Name	(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol
Molecular Weight	342.3
Molecular Formula	C12H22O11
Canonical SMILES	C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)O)CO)O)O)O)O
InChI	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-DCSYEGIMSA-N
Boiling Point	397.76 °C
Melting Point	222.8 °C
Flash Point	357.8°C
Purity	98%
Density	1.53 g/ml
Solubility	Insoluble in ether and chloroform, very slightly soluble in alcohol
Appearance	white, odorless, and crystalline powder
Application	1. Food industry: Lactose is widely used as a sweetener and bulking agent in the production of baked goods, confectionery, and dairy products. 2. Pharmaceutical industry: Lactose is a common excipient in the manufacture of tablets and capsules as it helps to bind drugs together and provide them with their desired physical properties. 3. Medical industry: Lactose is used in diagnostic tests for lactose intolerance and the determination of small intestinal transit time. 4. Agriculture: Lactose is used as a nutritional supplement in animal feed to increase milk production and improve weight gain in young animals. 5. Chemical industry: Lactose is used as a raw material in the production of lactic acid, which is used in a range of industrial applications, including the production of biodegradable plastics.
Active Content	95%
pKa	12.39±0.20
Refractive Index	1.652
Solubility in Water	5-10 g/100mL (20 ºC)