1-nitroso-1H-indazole-7-carboxylic acid CAS CATO-C4X-249334
| CAS No. | CATO-C4X-249334 |
| Molecular Formula | C8H5N3O3 |
| Molecular Weight | 191.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-nitroso-1H-indazole-7-carboxylic acid 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.
1-nitroso-1H-indazole-7-carboxylic acid (CAS CATO-C4X-249334) is a high-purity analytical reference standard with the molecular formula C8H5N3O3 and a molecular weight of 191.14 g/mol.
Based on its molecular formula C8H5N3O3, 1-nitroso-1H-indazole-7-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 191.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H5N3O3 |
| Molecular Weight | 191.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related nitroso Standards
- 1-Nitroso-1H-indazole-3-carboxylic Acid (CAS CATO-C3D-26200)
- N-Nitroso Levodropropizine EP Impurity B (CAS 14340-33-1)
- 1-Nitroso-4-phenylpiperidine (CAS 6652-04-6)
- N-Nitroso Tryptophol (CAS 120314-14-9)
- N-Nitroso-2,2-iminodiacetohydrazide (CAS CATO-C3D-26188)
- N-Nitroso Migalastat (CAS CATO-C4X-31891)
- N-Nitroso Acetylcysteine (CAS CATO-C4X-153252)
- N-Nitroso Buspirone EP Impurity A (CAS 872826-80-7)
Recommended Standards
- Isosorbide Dinitrate Impurity 28 (CAS CATO-C4X-223828)
- Nitrilotriacetic acid (CAS 139-13-9)
- Isosorbide Dinitrate EP Impurity B (CAS 16106-20-0)
- H-γ-Carboxy-DL-Glu-OH (CAS 56271-99-9)
- 5-Chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazole-4-sulfonyl chloride (CAS 1215986-42-7)
- 1079-86-3 N-(1H-Indol-6-ylmethyl)cyclopropanamine MFCD11556359 (CAS 1079-86-3)
- 2-3-O-Isopropylidenecytidine (CAS 362-42-5)
- 9h-Fluoren-9-ylmethyl n-(4-hydroxycyclohexyl)carbamate (CAS 1341479-28-4)
- B28ZGH99IH 552-82-9 Methyldiphenylamine Benzenamine, N-methyl-N-phenyl- Diphenylamine, N-methyl- (8CI) AI3-02479 Diphenylmethylamine N,N-Diphenylmethylamine EINECS 209-023-2 N-Methyldiphenylamine N-Methyl-N-phenylaniline NSC 3790 UNII-B28ZGH99IH (CAS 552-82-9)
- N-(chloromethyl)-N-methylmethanesulfonamide (CAS 82670-28-8)
- 1-(Aminomethyl)-3-benzyl-3-azabicyclo[3.1.0]hexane (CAS 134574-95-1)
- 3-Ethoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2223013-08-7)
- Letermovir Impurity 33 (CAS CATO-C4X-291533)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com