p-Toluenesulfonyl isocyanate CAS 4083-64-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4083-64-1 |
| Molecular Formula | C8H7NO3S |
| Molecular Weight | 197.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity p-Toluenesulfonyl isocyanate (CAS 4083-64-1) pharmaceutical standards reference standard. Molecular formula: C8H7NO3S. Molecular weight: 197.21 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C8H7NO3S |
| Molecular Weight | 197.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related p Standards
- m-toluenesulfonyl chloride (CAS 1899-93-0)
- 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)
- o-Toluenesulfonyl Chloride (contains ca. 23% isomer) (CAS 133-59-5)
- p-Toluenesulfonyl Chloride (CAS 98-59-9)
- 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
- tert-Butyl 6-fluoronicotinate (CAS 676560-01-3)
- 3-hydrazinyl-1$l^{6},2-benzothiazole-1,1-dione 3-hydrazinyl-1|E6,2-benzothiazole-1,1-dione 6635-42-3 (CAS 6635-42-3)
- N-[2-(2-Fluorophenoxy)ethyl]acetamide (CAS 331670-02-1)
- 2-Methyl-4-(4-methylpiperazin-1-yl)butan-2-amine (CAS 1339579-28-0)
- 4-amino-6-(pyridin-4-yl)pyridazin-3-ol (CAS 80843-53-4)
- (E)-({6-[(4-chlorophenyl)sulfanyl]pyridin-3-yl}methylidene)[(2,4-dichlorophenyl)methoxy]amine (CAS 338966-94-2)
- Ethyl anthracene-9-carboxylate (CAS 1754-54-7)
- Stiripentol Impurity 3 (CAS 106174-98-5)
- 2-(2-methoxyphenyl)-1H-imidazole-5-carboxylic acid (CAS 1083318-04-0)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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