5-Chloro-1H-indazole-3-carbohydrazide CAS 1203-97-0
| CAS No. | 1203-97-0 |
| Molecular Formula | C8H7ClN4O |
| Molecular Weight | 210.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Chloro-1H-indazole-3-carbohydrazide 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.
5-Chloro-1H-indazole-3-carbohydrazide (CAS 1203-97-0), molecular formula C8H7ClN4O and molecular weight 210.62 g/mol, is a CATO reference standard with documented purity and traceability.
5-Chloro-1H-indazole-3-carbohydrazide (C8H7ClN4O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H7ClN4O |
| Molecular Weight | 210.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 5-Chloro-6-methyl-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (CAS 1000340-12-4)
- 4-Chloro-7-methyl-1H-indazole-3-carboxylic acid (CAS 1000340-69-1)
- 5-Chloro-2-oxindole-1-carboxamide (CAS 100599-06-2)
- 5-((4-Chloro-1H-pyrazol-1-yl)methyl)furan-2-carbaldehyde (CAS 1006472-01-0)
- 5-Chloro-6-(prop-2-yn-1-ylamino)nicotinic acid (CAS 1019357-55-1)
- 3-Chloro-6-(prop-2-yn-1-ylamino)picolinic acid (CAS 1020948-43-9)
- 6-Chloro-1-methylquinazoline-2,4(1H,3H)-dione (CAS 10320-59-9)
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Recommended Standards
- Methyl 7-chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylate (CAS 1196154-40-1)
- Methyl 6-chloroimidazo[1,2-a]pyridine-2-carboxylate (CAS 1206248-90-9)
- N-(6-Chlorobenzo[d]isoxazol-3-yl)acetamide (CAS 1195331-54-4)
- 3-Chloroimidazo[1,2-a]pyridine-6-carbohydrazide (CAS 1211364-66-7)
- 4,4',4''-(Benzene-1,3,5-triyl)tris(2-methylbut-3-yn-2-ol) (CAS 105405-52-5)
- (S,S)-BiPybox-ipr (CAS 147409-41-4)
- 3-(1-Phenyl-1H-pyrazol-3-yl)-1-(3-(trifluoromethyl)phenyl)pyridazin-4(1H)-one (CAS 318498-02-1)
- Tert-butyl n-(2-formylthiophen-3-yl)carbamate (CAS 368442-47-1)
- tert-Butyl (6R)-3-bromo-6-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate (CAS 1639881-14-3)
- 4-(benzylsulfanyl)-3-nitrobenzoic acid (CAS 82964-59-8)
- 2-Bromo-4-chloro-1-isopropylbenzene (CAS 1369828-32-9)
- Trimethoprim Impurity 2 (CAS 51210-04-9)
- 2-Methoxy-5-(pyrrolidin-3-yl)pyridine (CAS 1008112-12-6)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
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