1,2,3,4-Tetrachlorocyclopenta-1,3-diene CAS 695-77-2

Purity 97%+In StockPharmaceutical Standards
CAS No.695-77-2
Molecular FormulaC5H2Cl4
Molecular Weight203.88 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2,3,4-Tetrachlorocyclopenta-1,3-diene CAS 695-77-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 203.88 g/mol gives 1,2,3,4-Tetrachlorocyclopenta-1,3-diene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,2,3,4-Tetrachlorocyclopenta-1,3-diene (CAS 695-77-2) is a high-purity analytical reference standard with the molecular formula C5H2Cl4 and a molecular weight of 203.88 g/mol.

Structurally, 1,2,3,4-Tetrachlorocyclopenta-1,3-diene (C5H2Cl4) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 203.88 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.

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.

CATO manufactures 1,2,3,4-Tetrachlorocyclopenta-1,3-diene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H2Cl4
Molecular Weight203.88 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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