2-Diazo-1-oxo naphthalene-5-sulfonyl chloride CAS 138863-74-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138863-74-8 |
| Molecular Formula | C10H5ClN2O3S |
| Molecular Weight | 268.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Diazo-1-oxo naphthalene-5-sulfonyl chloride (CAS 138863-74-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C10H5ClN2O3S. Molecular weight: 268.68 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C10H5ClN2O3S |
| Molecular Weight | 268.68 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Diazo Standards
- 2-Diazo-1-naphthol-5-sulfonyl Chloride (CAS 3770-97-6)
- Methyl 2-diazo-2-(phenylsulfonyl)acetate (CAS 70972-83-7)
- 3-Diazo-1-(1H-indol-3-yl)-1,2-propanedione (CAS 3194-21-6)
- Ethyl 2-diazo-3,3,3-trifluoro-propionate (CAS 59733-95-8)
- 6-Diazo-5-oxo-L-nor-Leucine (CAS 157-03-9)
- H-6-Diazo-5-oxo-D-Nle-OH (CAS 71629-86-2)
- 1-Diazo-4-phenyl-3-butyn-2-one (CAS 28861-29-2)
- 5-Diazo-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 7270-63-5)
Recommended Standards
- 5-(2,2,2-Trifluoroethoxy)pentane-1-sulfonyl chloride (CAS 1343635-03-9)
- 2-Methyl-3-((1,1,1-trifluoropropan-2-yl)oxy)propane-1-sulfonyl chloride (CAS 1517681-22-9)
- N1-(2-chloroethanimidoyl)-2,4-difluorobenzene-1-sulphonamide (CAS 219619-48-4)
- Misoprostol EP Impurity F (CAS 40098-26-8)
- 3-Pentanamido-3-phenylpropanoic acid (CAS 1016756-21-0)
- 2-amino-2-[4-(trifluoromethyl)phenyl]ethanol (CAS 473416-36-3)
- (4-(5-Amino-1,3,4-thiadiazol-2-yl)phenyl)boronicacid (CAS 957034-52-5)
- 1-(Benzenesulfonyl)-2-iodo-1H-pyrrolo[3,2-c]pyridine (CAS 877060-44-1)
- (4-Bromo-7-methoxy-2,3-dihydrobenzofuran-2-yl)methanol (CAS 2170096-61-2)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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