2-chloro-3-methyl-5-nitrobenzene-1-sulfonyl chloride CAS 1156136-99-0
| CAS No. | 1156136-99-0 |
| Molecular Formula | C7H5Cl2NO4S |
| Molecular Weight | 270.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 270.09 g/mol gives 2-chloro-3-methyl-5-nitrobenzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-chloro-3-methyl-5-nitrobenzene-1-sulfonyl chloride (CAS 1156136-99-0), a certified reference material (molecular formula C7H5Cl2NO4S, MW 270.09 g/mol) for analytical method development and quality control.
Structurally, 2-chloro-3-methyl-5-nitrobenzene-1-sulfonyl chloride (C7H5Cl2NO4S) contains an amide group, 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 270.09 g/mol, it falls into the medium-molecular-weight range. 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), 2-chloro-3-methyl-5-nitrobenzene-1-sulfonyl 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 | C7H5Cl2NO4S |
| Molecular Weight | 270.09 g/mol |
| Purity | 97%+ |
| Storage | Store 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 |
| Stability | May 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related chloro Standards
- methyl 2-chloro-5-(chlorosulfonyl)pyridine-3-carboxylate (CAS 1118787-91-9)
- Methyl 6-chloro-5-(chlorosulfonyl)pyridine-3-carboxylate (CAS 1118787-95-3)
- (2-Chloro-5-nitrophenyl)methanesulfonyl chloride (CAS 1250693-09-4)
- (2-Chloro-6-nitrophenyl)methanesulfonyl chloride (CAS 1339221-99-6)
- methyl 6-chloro-3-(chlorosulfonyl)pyridine-2-carboxylate (CAS 1384429-79-1)
- Methyl 4-chloro-6-(chlorosulfonyl)picolinate (CAS 1393531-06-0)
- Methyl 2-chloro-6-(chlorosulfonyl)isonicotinate (CAS 1393548-02-1)
- (5-Chloro-2-nitrophenyl)methanesulfonyl chloride (CAS 1540471-57-5)
Recommended Standards
- 4-fluoro-3-iodo-1H-pyrrolo[3,2-c]pyridine (CAS 1190309-79-5)
- 4-fluoro-3-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 1190320-05-8)
- 5-Fluoro-4-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 1015610-23-7)
- 4-fluoro-3-iodo-1H-pyrrolo[2,3-c]pyridine (CAS 1190322-38-3)
- 2-(4-Bromo-2-(difluoromethyl)-6-iodopyridin-3-yl)acetic acid (CAS 1806910-66-6)
- tert-butyl(propyl)amine hydrochloride (CAS 57885-83-3)
- Phthalazine-1-carboxylic acid (CAS 801161-36-4)
- (E)-1-(Thiazol-2-yl)but-2-en-1-one (CAS 949489-45-6)
- 2-(1-Azetidinyl)-5-bromopyrimidine (CAS 850349-22-3)
- 2-Methyl-3-furanthiol (CAS 28588-74-1)
- N-[2-(1-aminoethyl)phenyl]methanesulfonamide hydrochloride (CAS 1170639-76-5)
- 2,3-Dibromo-6-(difluoromethyl)-4-methylpyridine (CAS 1804714-91-7)
- 5-Aminomethyl indazole, 97% (CAS 267413-25-2)
- Neuropeptide Y (13-36) (human, rat) (CAS 122341-40-6)
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