1-chloro-2-ethynyl-benzene 1-chloro-2-ethynylbenzene 2'-Chlorophenyl acetylene 2-chlorophenylacetylene 873-31-4 CAS 873-31-4

Purity 97%+In StockPharmaceutical Standards
CAS No.873-31-4
Molecular FormulaC8H5Cl
Molecular Weight136.58 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-chloro-2-ethynyl-benzene 1-chloro-2-ethynylbenzene 2'-Chlorophenyl acetylene 2-chlorophenylacetylene 873-31-4 CAS 873-31-4 chemical structure

Description

The occurrence of 1-chloro-2-ethynyl-benzene 1-chloro-2-ethynylbenzene 2'-Chlorophenyl acetylene 2-chlorophenylacetylene 873-31-4 is closely related to chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 1-chloro-2-ethynyl-benzene 1-chloro-2-ethynylbenzene 2'-Chlorophenyl acetylene 2-chlorophenylacetylene 873-31-4 (CAS 873-31-4), a certified reference material (molecular formula C8H5Cl, MW 136.58 g/mol) for analytical method development and quality control.

Based on its molecular formula C8H5Cl, 1-chloro-2-ethynyl-benzene 1-chloro-2-ethynylbenzene 2'-Chlorophenyl acetylene 2-chlorophenylacetylene 873-31-4 contains chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 136.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), 1-chloro-2-ethynyl-benzene 1-chloro-2-ethynylbenzene 2'-Chlorophenyl acetylene 2-chlorophenylacetylene 873-31-4 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 FormulaC8H5Cl
Molecular Weight136.58 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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