223671-81-6 4-Chloro-1,2-dihydro-1-oxo-7-isoquinolinesulfonyl Chloride 4-Chloro-1-hydroxy-7-isoquinolinesulfonyl Chloride CAS 223671-81-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 223671-81-6 |
| Molecular Formula | C9H5Cl2NO3S |
| Molecular Weight | 278.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 223671-81-6 4-Chloro-1,2-dihydro-1-oxo-7-isoquinolinesulfonyl Chloride 4-Chloro-1-hydroxy-7-isoquinolinesulfonyl Chloride (CAS 223671-81-6) pharmaceutical standards reference standard. Molecular formula: C9H5Cl2NO3S. Molecular weight: 278.11 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C9H5Cl2NO3S |
| Molecular Weight | 278.11 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 |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-3-phenyl-1,2-oxazole-5-sulfonyl chloride (CAS 1263215-06-0)
- 1-Chloro-4-hydroxyisoquinoline-6-sulfonyl chloride (CAS 1443377-63-6)
- 2-Chloro-N-(5-chloro-2,4-dimethoxyphenyl)propanamide (CAS 1016757-52-0)
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Recommended Standards
- n-Methyl-2-nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 956821-93-5)
- 2-[1-(5-bromothiophen-2-yl)-n-methylformamido]acetic acid (CAS 1016705-13-7)
- Methyl 3-hydroxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 2026647-81-2)
- (3,3-Difluoro-1-azabicyclo[3.2.0]heptan-5-yl)methanol (CAS 2820537-49-1)
- Actyl octylcarbamate (CAS 1071-65-4)
- Piperidin-2-ol (CAS 45506-41-0)
- 4-(Benzo[d][1,3]dioxol-5-yl)-2-oxopyrrolidine-3-carboxylic acid (CAS 927802-31-1)
- (1-(3-Methoxybenzyl)cyclopropyl)methanol (CAS 1486641-15-9)
- Trimethyl(vinyl)ammonium chloride (CAS 6018-82-2)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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