Description

2-o-β-D-Galactopyranosyl-D-Glucopyranose, also known as Lactose, is a fundamental disaccharide sugar derived from milk. It serves as a critical excipient and raw material in the pharmaceutical and food industries, valued for its compressibility, stability, and nutritional profile. This product is essential for manufacturers in pharmaceutical formulation, infant nutrition, and specialty food production who require a reliable, high-purity carbohydrate source.

Application

• Pharmaceutical Excipient: Widely used as a filler, binder, and diluent in tablet and capsule formulations due to its excellent compressibility and flow properties.
• Infant Formula & Clinical Nutrition: A key carbohydrate source in infant milk powder and medical nutritional products, providing essential energy.
• Food & Beverage Industry: Used as a sweetener, texturizer, and carrier for flavors and colors in baked goods, confectionery, and processed foods.
• Microbiology & Biotechnology: Serves as a carbon source in microbial culture media for fermentation processes and laboratory research.
• Animal Feed Additive: Incorporated into feed for young animals as a digestible energy supplement.
• Chemical Synthesis: Acts as a starting material or chiral building block for the synthesis of more complex carbohydrates and derivatives.

Basic Information

Product Name	2-o-β-D-Galactopyranosyl-D-Glucopyranose
CAS No.	16790-30-0
Molecular Formula	C12H22O11
Molecular Weight	342.30 g/mol
Synonyms	Lactose; Milk Sugar; 4-O-β-D-Galactopyranosyl-D-glucose; β-Lactose; Saccharum lactis; D-Lactose; Anhydrous Lactose; Lactose Monohydrate (for the hydrated form)
EINECS	240-834-6

Quality Control

Our Lactose is produced under a strict quality management system. We offer grades suitable for demanding applications, including pharmaceutical (USP/EP/JP) and food (FCC) standards. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and safety parameters to ensure compliance with your specifications and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in original packaging or airtight containers to prevent caking and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0% (on anhydrous basis)
Water (Karl Fischer)	≤ 5.0% (for monohydrate) / ≤ 1.0% (for anhydrous)
Specific Rotation	+52.0° to +52.6°
pH (10% solution)	4.0 - 7.0
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Microbiological Control	Meets Ph. Eur./USP criteria

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.