3-(Chlorosulfonyl)-4-methylbenzoyl chloride CAS 547739-67-3
| CAS No. | 547739-67-3 |
| Molecular Formula | C8H6Cl2O3S |
| Molecular Weight | 253.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(Chlorosulfonyl)-4-methylbenzoyl chloride (CAS 547739-67-3), a certified reference material (molecular formula C8H6Cl2O3S, MW 253.10 g/mol) for analytical method development and quality control.
Structurally, 3-(Chlorosulfonyl)-4-methylbenzoyl chloride (C8H6Cl2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 253.10 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 3-(Chlorosulfonyl)-4-methylbenzoyl chloride 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 Formula | C8H6Cl2O3S |
| Molecular Weight | 253.10 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorosulfonyl Standards
- 5-(chlorosulfonyl)-2-methylbenzoyl chloride (CAS 1426437-45-7)
- Ethyl 2-(chlorosulfonyl)cyclohex-1-enecarboxylate (CAS 243984-26-1)
- methyl 5-(chlorosulfonyl)-1-ethyl-1h-pyraZole-3-carboxylate (CAS 1260659-24-2)
- Ethyl 5-(chlorosulfonyl)-3-methyl-1H-pyrazole-4-carboxylate (CAS 1299471-28-5)
- Ethyl 5-(chlorosulfonyl)-1-methyl-1h-pyrazole-4-carboxylate (CAS 88398-82-7)
- methyl 4-(chlorosulfonyl)-5-ethylfuran-2-carboxylate (CAS 1443981-74-5)
- Methyl 4-(chlorosulfonyl)-2,5-dimethyl-3-furoate (CAS 306936-34-5)
- 5-(chlorosulfonyl)-4-fluoro-2-methylbenzoic acid (CAS 1026030-54-5)
Recommended Standards
- 3-(4-Bromophenyl)-5-ethyl-1,2,4-oxadiazole (CAS 364743-34-0)
- 3-[4-(BROMOMETHYL)PHENYL]-5-METHYL-1,2,4-OXADIAZOLE (CAS 256956-42-0)
- 3-(3-Bromophenyl)-5-ethyl-1,2,4-oxadiazole (CAS 911049-01-9)
- 3-Bromo-2-ethyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 918422-47-6)
- 2-(Methoxymethyl)-5h,6h,7h,8h-[1,2,4]triazolo[1,5-a]pyridin-8-amine (CAS 1394040-11-9)
- (S)-3-Methyl-5-phenyl-2,3,4,5-tetrahydro-1H-benzo[d]azepin-7-ol (CAS 109010-52-8)
- Ethyl 2-isopropylisonicotinate (CAS 91247-08-4)
- (S)-(4,7-Dihydro-5H-thieno[2,3-c]pyran-7-yl)methanamine hydrochloride (CAS 1310422-39-9)
- Pamabrom USP Related Compound A (CAS 85-18-7)
- 5-(5-Fluoro-2-methylphenyl)-3-methyl-5-oxopentanoic acid (CAS 951885-07-7)
- 1-Tosylpiperidine (CAS 4703-22-4)
- Tert-butyl (((2S,4R)-4-hydroxypyrrolidin-2-yl)methyl)carbamate (CAS 500733-24-4)
- 3-Isopropyl-2-methoxypyridine (CAS 1083845-78-6)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
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