Calcium bis(2-hydroxy-4-(methylthio)butyrate) CAS 4857-44-7

Purity >95%,TitrationIn StockPharmaceutical Standards
CAS No.4857-44-7
Molecular Formula2*C5H9O3S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Calcium bis(2-hydroxy-4-(methylthio)butyrate) CAS 4857-44-7 chemical structure

Description

Calcium bis(2-hydroxy-4-(methylthio)butyrate) (CAS 4857-44-7), molecular formula C5H9O3SCa and molecular weight 189.26 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Calcium bis(2-hydroxy-4-(methylthio)butyrate) is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 189.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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), Calcium bis(2-hydroxy-4-(methylthio)butyrate) 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 Formula2*C5H9O3S Ca
Molecular Weight189.26 g/mol
Purity>95%,Titration
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.5
CAS Registry Year (est.)1958
Sulfur Atoms1

Recommended Standards

Why CATO?