5990-32-9 021IBV57IL Zinc citrate dihydrate UNII-021IBV57IL 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt, hydrate (2:3:2) 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt (2:3), dihydrate CAS 5990-32-9

Purity 97%+In StockPharmaceutical Standards
CAS No.5990-32-9
Molecular Formula2*C6H5O7
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5990-32-9 021IBV57IL Zinc citrate dihydrate UNII-021IBV57IL 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt, hydrate (2:3:2) 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt (2:3), dihydrate CAS 5990-32-9 chemical structure

Description

5990-32-9 021IBV57IL Zinc citrate dihydrate UNII-021IBV57IL 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt, hydrate (2:3:2) 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt (2:3), dihydrate (CAS 5990-32-9) is a high-purity analytical reference standard with the molecular formula C6H5O7ZnH2O and a molecular weight of 272.49 g/mol.

5990-32-9 021IBV57IL Zinc citrate dihydrate UNII-021IBV57IL 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt, hydrate (2:3:2) 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, zinc salt (2:3), dihydrate (C6H5O7ZnH2O) contains a carbohydrate-derived structure. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular Formula2*C6H5O7 3*Zn 2*H2O
Molecular Weight272.49 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958

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