2-Chloro-5-{2-[(4E)-1,3-dioxo-3,4-dihydro-1H-2-benzopyran-4-ylidene]hydrazin-1-yl}benzoic acid CAS 339100-75-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 339100-75-3 |
| Molecular Formula | C16H9ClN2O5 |
| Molecular Weight | 344.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Chloro-5-{2-[(4E)-1,3-dioxo-3,4-dihydro-1H-2-benzopyran-4-ylidene]hydrazin-1-yl}benzoic acid (CAS 339100-75-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C16H9ClN2O5. Molecular weight: 344.71 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C16H9ClN2O5 |
| Molecular Weight | 344.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
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- N-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}ethyl)benzamide (CAS 1797376-30-7)
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Recommended Standards
- (6-Bromo-2-fluoro-3-iodophenyl)boronic acid (CAS 1072951-90-6)
- 4-Bromo-2-fluoro-3-iodophenylboronic Acid (CAS 2121514-50-7)
- Methyl (2E)-3-{3-chloro-4-[(trifluoromethane)sulfonyloxy]phenyl}prop-2-enoate (CAS 862651-06-7)
- (4-((4-Methylpiperazin-1-yl)methyl)phenyl)(p-tolyl)methanone (CAS 898783-45-4)
- N-(5-Bromo-2-methoxypyridin-3-yl)-2,2,2-trifluoroacetamide (CAS 1425334-90-2)
- 2-(((3,4-Difluorophenyl)amino)methyl)phenol (CAS 329779-39-7)
- Ethyl 2-(2,6-dichlorophenyl)ethanimidate hydrochloride (CAS 77831-48-2)
- Methyl 6-chlorobenzo[d]oxazole-2-carboxylate (CAS 1538430-09-9)
- 4,5-Dibromothiophene-2-sulfonamide (CAS 77893-69-7)
- Tau Peptide (275-305) (Repeat 2 Domain) trifluoroacetate salt (CAS 330456-25-2)
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