1,3-Propanedisulfonic Acid (50-60% in Water) CAS 21668-77-9

Purity 97%+In StockPharmaceutical Standards
CAS No.21668-77-9
Molecular FormulaC3H8O6S2
Molecular Weight204.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3-Propanedisulfonic Acid (50-60% in Water) CAS 21668-77-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,3-Propanedisulfonic Acid (50-60% in Water).

1,3-Propanedisulfonic Acid (50-60% in Water) (CAS 21668-77-9) is a high-purity analytical reference standard with the molecular formula C3H8O6S2 and a molecular weight of 204.22 g/mol.

Structurally, 1,3-Propanedisulfonic Acid (50-60% in Water) (C3H8O6S2) contains a sulfone group, a carboxylic acid group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 204.22 g/mol, it falls into the medium-molecular-weight range.

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

As a certified reference material (CRM), 1,3-Propanedisulfonic Acid (50-60% in Water) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC3H8O6S2
Molecular Weight204.22 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1963
Sulfur Atoms2

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