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Lactobionic Acid USP NF BP Ph Eur Grade Manufacturers
CAS Number: 96-82-2, EINECS EC Number: 202-538-3, Molecular Formula: C12H22O12, Molecular Weight: 358.30
SDS of Lactobionic Acid Manufacturers Suppliers
Specifications of Lactobionic Acid USP NF Grade Specifications:
C12H22O12 (acid form) --- 358.30 --- CAS 96-82-2.
C12H20O11 (δ-lactone) 340.28 [CAS 5965-65-1].
4-O-β-Galactopyranosyl-d-gluconic acid.
DEFINITION
Lactobionic Acid is a mixture in variable proportions of 4-O-β-d-galactopyranosyl-d-gluconic acid and 4-O-β-d-galactopyranosyl-d-glucono-1,5-lactone. It contains 98% toT 102%, on the anhydrous basis.
IDENTIFICATION
A. Infrared Absorption: To pass the test.
B. Thin-Layer Chromatography: To pass the test.
Water: 5.0% maximum.
Appearance of Solution: 120 mg/mL of Lactobionic Acid
Standard stock solution: The Sample solution is clear and not more intensely colored than the Reference solution.
Optical Rotation: 10 mg/mL of Lactobionic Acid. Allow to stand for 24 h. Acceptance criteria: +23.0° to +29.0° (anhydrous substance).
Reducing Sugars: To pass the test. Maximum 0.2% of reducing sugars, as glucose.
Articles of Botanical Origin: 0.2% maximum.
Lactobionic Acid BP Ph Eur Grade Specifications
Ph Eur
C12H22O12 (acid form) 358.3 CAS 96-82-2
C12H20O11 (d-lactone) 340.3 CAS 5965-65-1
DEFINITION
Mixture in variable proportions of 4-O-b-D-galactopyranosyl-D-gluconic acid and 4-O-b-Dgalactopyranosyl-D-glucono-1,5-lactone.
Content: 98.0 per cent to 102.0 per cent (anhydrous substance).
CHARACTERS
Appearance: White or almost white powder.
Solubility: Freely soluble in water, slightly soluble in glacial acetic acid, in anhydrous ethanol and in methanol.
mp: About 125 °C with decomposition.
IDENTIFICATION
A. Infrared absorption spectrophotometry: To pass the test.
B. Thin-layer chromatography: To pass the test.
TESTS
Appearance of solution: The solution is clear and not more intensely coloured than reference.
Specific optical rotation: + 23.0 to + 29.0 (anhydrous substance).
Dissolve 1.0 g in 80 ml of water and dilute to 100.0 ml with the same solvent. Allow to stand for 24 h.
Reducing sugars: Maximum 0.2 per cent, calculated as glucose.
Heavy metals: Maximum 20 ppm.
Water: Maximum 5.0 per cent, determined on 0.50 g.
Total ash: Maximum 0.2 per cent.
Manufacturers Suppliers Exporters
Anmol Chemicals
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610, 23723564. FAX: 91-22-23728264
e-mail: anmolc@mtnl.net.in
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