6671-49-4 Potassium 4-chloro-3-nitrobenzenesulphonate Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt (1:1) Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt EINECS 229-709-5 NSC 202712 Potassium 4-chloro-3-nitrobenzenesulfonate CAS 6671-49-4

Purity 97%+In StockPharmaceutical Standards
CAS No.6671-49-4
Molecular FormulaC6H3ClNO5S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6671-49-4 Potassium 4-chloro-3-nitrobenzenesulphonate Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt (1:1) Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt EINECS 229-709-5 NSC 202712 Potassium 4-chloro-3-nitrobenzenesulfonate CAS 6671-49-4 chemical structure

Description

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 supplies 6671-49-4 Potassium 4-chloro-3-nitrobenzenesulphonate Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt (1:1) Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt EINECS 229-709-5 NSC 202712 Potassium 4-chloro-3-nitrobenzenesulfonate (CAS 6671-49-4), a certified reference material (molecular formula C6H3ClNO5SK, MW 275.70 g/mol) for analytical method development and quality control.

The molecular framework of 6671-49-4 Potassium 4-chloro-3-nitrobenzenesulphonate Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt (1:1) Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt EINECS 229-709-5 NSC 202712 Potassium 4-chloro-3-nitrobenzenesulfonate (C6H3ClNO5SK) is characterized by a salt form, a carbohydrate-derived structure, an amide group, a sulfone group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO manufactures 6671-49-4 Potassium 4-chloro-3-nitrobenzenesulphonate Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt (1:1) Benzenesulfonic acid, 4-chloro-3-nitro-, potassium salt EINECS 229-709-5 NSC 202712 Potassium 4-chloro-3-nitrobenzenesulfonate 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 FormulaC6H3ClNO5S K
Molecular Weight275.70 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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