1637-31-6 1,3-Butadiene, 1,2,3,4-tetrachloro- 1,2,3,4-Tetrachloro-1,3-butadiene CAS 1637-31-6

Purity 97%+In StockPharmaceutical Standards
CAS No.1637-31-6
Molecular FormulaC4H2Cl4
Molecular Weight191.87 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1637-31-6
1,3-Butadiene, 1,2,3,4-tetrachloro-
1,2,3,4-Tetrachloro-1,3-butadiene CAS 1637-31-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 191.87 g/mol gives 1637-31-6 1,3-Butadiene, 1,2,3,4-tetrachloro- 1,2,3,4-Tetrachloro-1,3-butadiene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1637-31-6 1,3-Butadiene, 1,2,3,4-tetrachloro- 1,2,3,4-Tetrachloro-1,3-butadiene (CAS 1637-31-6) is a high-purity analytical reference standard with the molecular formula C4H2Cl4 and a molecular weight of 191.87 g/mol.

Structurally, 1637-31-6 1,3-Butadiene, 1,2,3,4-tetrachloro- 1,2,3,4-Tetrachloro-1,3-butadiene (C4H2Cl4) contains chlorine substitution. 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 191.87 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC4H2Cl4
Molecular Weight191.87 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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