4628-94-8 Dipotassium 1,3,4-thiadiazole-2,5-dithiolate 1,3,4-Thiadiazolidine-2,5-dithione, potassium salt (1:2) 1,3,4-Thiadiazolidine-2,5-dithione, dipotassium salt 2,5-Dimercapto-1,3,4-thiadiazole, dipotassium salt EINECS 225-043-4 CAS 4628-94-8

Purity 97%+In StockPharmaceutical Standards
CAS No.4628-94-8
Molecular FormulaC2H4K2N2S3
Molecular Weight230.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4628-94-8 Dipotassium 1,3,4-thiadiazole-2,5-dithiolate 1,3,4-Thiadiazolidine-2,5-dithione, potassium salt (1:2) 1,3,4-Thiadiazolidine-2,5-dithione, dipotassium salt 2,5-Dimercapto-1,3,4-thiadiazole, dipotassium salt EINECS 225-043-4 CAS 4628-94-8 chemical structure

Description

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.

4628-94-8 Dipotassium 1,3,4-thiadiazole-2,5-dithiolate 1,3,4-Thiadiazolidine-2,5-dithione, potassium salt (1:2) 1,3,4-Thiadiazolidine-2,5-dithione, dipotassium salt 2,5-Dimercapto-1,3,4-thiadiazole, dipotassium salt EINECS 225-043-4 (CAS 4628-94-8) is a high-purity analytical reference standard with the molecular formula C2H4K2N2S3 and a molecular weight of 230.46 g/mol.

Structurally, 4628-94-8 Dipotassium 1,3,4-thiadiazole-2,5-dithiolate 1,3,4-Thiadiazolidine-2,5-dithione, potassium salt (1:2) 1,3,4-Thiadiazolidine-2,5-dithione, dipotassium salt 2,5-Dimercapto-1,3,4-thiadiazole, dipotassium salt EINECS 225-043-4 (C2H4K2N2S3) contains a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 230.46 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC2H4K2N2S3
Molecular Weight230.46 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1958
Nitrogen Atoms2
Sulfur Atoms3

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