4-(Chlorocarbonyl)benzoic acid methyl ester Terephthalic acid monomethyl ester chloride methyl 4-chlorocarbonylbenzoate Methyl 4-(chlorocarbonyl)benzoate 4-(chlorocarbonyl)-benzoic acid methyl ester methyl 4-(carbonochloridoyl)benzoate methyl 4-chlorocarbonyl benzoate methyl 4-(chloroformyl)benzoate Methyl terephthaloyl chloride 7377-26-6 CAS 7377-26-6

Purity 97%+In StockPharmaceutical Standards
CAS No.7377-26-6
Molecular FormulaC9H13ClO3
Molecular Weight204.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Chlorocarbonyl)benzoic acid methyl ester Terephthalic acid monomethyl ester chloride methyl 4-chlorocarbonylbenzoate Methyl 4-(chlorocarbonyl)benzoate 4-(chlorocarbonyl)-benzoic acid methyl ester methyl 4-(carbonochloridoyl)benzoate methyl 4-chlorocarbonyl benzoate methyl 4-(chloroformyl)benzoate Methyl terephthaloyl chloride 7377-26-6 CAS 7377-26-6 chemical structure

Description

Based on its molecular formula C9H13ClO3, 4-(Chlorocarbonyl)benzoic acid methyl ester Terephthalic acid monomethyl ester chloride methyl 4-chlorocarbonylbenzoate Methyl 4-(chlorocarbonyl)benzoate 4-(chlorocarbonyl)-benzoic acid methyl ester methyl 4-(carbonochloridoyl)benzoate methyl 4-chlorocarbonyl benzoate methyl 4-(chloroformyl)benzoate Methyl terephthaloyl chloride 7377-26-6 contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 204.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

4-(Chlorocarbonyl)benzoic acid methyl ester Terephthalic acid monomethyl ester chloride methyl 4-chlorocarbonylbenzoate Methyl 4-(chlorocarbonyl)benzoate 4-(chlorocarbonyl)-benzoic acid methyl ester methyl 4-(carbonochloridoyl)benzoate methyl 4-chlorocarbonyl benzoate methyl 4-(chloroformyl)benzoate Methyl terephthaloyl chloride 7377-26-6 (CAS 7377-26-6), molecular formula C9H13ClO3 and molecular weight 204.65 g/mol, is a CATO reference standard with documented purity and traceability.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 4-(Chlorocarbonyl)benzoic acid methyl ester Terephthalic acid monomethyl ester chloride methyl 4-chlorocarbonylbenzoate Methyl 4-(chlorocarbonyl)benzoate 4-(chlorocarbonyl)-benzoic acid methyl ester methyl 4-(carbonochloridoyl)benzoate methyl 4-chlorocarbonyl benzoate methyl 4-(chloroformyl)benzoate Methyl terephthaloyl chloride 7377-26-6 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 FormulaC9H13ClO3
Molecular Weight204.65 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1959
Halogen ContentCl-containing

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