m-toluenesulfonyl chloride CAS 1899-93-0
| CAS No. | 1899-93-0 |
| Molecular Formula | C7H13ClO2S |
| Molecular Weight | 196.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 196.69 g/mol gives m-toluenesulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
m-toluenesulfonyl chloride (CAS 1899-93-0) is a high-purity analytical reference standard with the molecular formula C7H13ClO2S and a molecular weight of 196.69 g/mol.
Structurally, m-toluenesulfonyl chloride (C7H13ClO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 196.69 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 m-toluenesulfonyl chloride 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 Formula | C7H13ClO2S |
| Molecular Weight | 196.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related m Standards
- p-Toluenesulfonyl isocyanate (CAS 4083-64-1)
- o-Toluenesulfonyl Chloride (contains ca. 23% isomer) (CAS 133-59-5)
- p-Toluenesulfonyl Chloride (CAS 98-59-9)
- 1-(p-Toluenesulfonyl)aziridine 1-(p-Toluenesulfonyl)ethylenimine 1-(p-Tolylsulfonyl)aziridine 1-Tosylaziridine 1-[(4-Methylphenyl)sulfonyl]aziridine 3634-89-7 N-(p-Toluenesulfonyl)aziridine N-(p-Tolylsulfonyl)aziridine N-Tosylaziridine N-[(4-Methylphenyl)sulfonyl]aziridine N-p-Tosylaziridine (CAS 3634-89-7)
- p-Toluenesulfonyl Hydrazide (CAS 1576-35-8)
- 4-Toluenesulfonyl cyanide (CAS 19158-51-1)
- 455-16-3 4-Toluenesulfonyl fluoride Benzenesulfonyl fluoride, 4-methyl- 4-Methylbenzenesulfonyl fluoride p-Toluenesulfonyl fluoride p-Toluenesulphonyl fluoride 4-11-00-00375 (Beilstein Handbook Reference) BRN 2208423 EINECS 207-238-6 p-Methylbenzenesulfonyl fluoride p-Methylphenylsulfonyl fluoride NSC 2749 Phenylmethylsulfonyl fluoride Toluene-4-sulfonyl fluoride Toluene-p-sulphonyl fluoride 4-Tolylsulfonyl fluoride Tosyl fluoride (CAS 455-16-3)
- 1-(P-Toluenesulfonyl)pyrrole-2-aldehyde (CAS 102619-05-6)
Recommended Standards
- Cycloheptanesulfonyl chloride (CAS 187143-10-8)
- (3,3-Dimethylcyclobutyl)methanesulfonyl chloride (CAS 1935526-71-8)
- Hept-6-ene-1-sulfonyl chloride (CAS 1699978-43-2)
- Phenylmethanesulfonyl chloride (CAS 1939-99-7)
- N-((1-(2-Aminoacetyl)pyrrolidin-3-yl)methyl)-N-cyclopropylacetamide (CAS 1353966-20-7)
- (2E)-3-(3-BRomo-4-fluorophenyl)-2-propenoic acid, methyl ester (CAS 959961-64-9)
- (3aR,6aS)-5-Thioxohexahydroimidazo[4,5-d]imidazol-2(1H)-one (CAS 1595284-05-1)
- Dihomo-Gamma-Linolenic Acid (CAS 1783-84-2)
- 5-Bromo-2-(3-bromopyridin-2-yl)-2H-1,2,3-triazol-4-amine (CAS 1708168-56-2)
- 2-(tert-Butoxy)-4-cyclopropoxy-1-fluorobenzene (CAS 1243462-05-6)
- Rocuronium Impurity 45 (CAS CATO-C4X-124245)
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- 4-((tert-Butoxycarbonyl)amino)-2-chloronicotinic acid (CAS 1383788-47-3)
- Autoinducing Peptide I trifluoroacetate salt (CAS 200010-29-3)
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