Pigment Blue 29 CAS 57455-37-5

Purity 97%+In StockPharmaceutical Standards
CAS No.57455-37-5
Molecular FormulaS3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Pigment Blue 29 CAS 57455-37-5 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 Pigment Blue 29.

Pigment Blue 29 (CAS 57455-37-5), molecular formula S3O4SiAlNa and molecular weight 238.23 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Pigment Blue 29 (S3O4SiAlNa) contains a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 238.23 g/mol, it falls into the medium-molecular-weight range.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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 FormulaS3 6*O4Si 6*Al 8*Na
Molecular Weight238.23 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1973
Sulfur Atoms3

Related Pigment Standards

Recommended Standards

Why CATO?