5-Chloro-1H-indazol-3-amine CAS 5685-72-3
| CAS No. | 5685-72-3 |
| Molecular Formula | C7H6ClN3 |
| Molecular Weight | 167.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 167.60 g/mol gives 5-Chloro-1H-indazol-3-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Chloro-1H-indazol-3-amine (CAS 5685-72-3), molecular formula C7H6ClN3 and molecular weight 167.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 5-Chloro-1H-indazol-3-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 167.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H6ClN3 |
| Molecular Weight | 167.60 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 4-Chloro-1H-pyrrolo[2,3-b]pyridin-3-amine (CAS 1000340-38-4)
- 6-Chloro-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 1000340-80-6)
- 5-Chloro-1H-pyrrolo[3,2-b]pyridin-7-amine (CAS 1000577-90-1)
- 5-Chloro-1H-indazol-6-amine (CAS 100960-35-8)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1020036-37-6)
- 7-Chloro-1H-benzo[d]imidazol-5-amine (CAS 10597-54-3)
- 6-Chloro-1H-benzo[d]imidazol-4-amine (CAS 10597-55-4)
- 2-Chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 1060816-67-2)
Recommended Standards
- 5-Amino-2-chloro-6-methylnicotinonitrile (CAS 57183-29-6)
- 5-Chloro-1H-indazol-4-amine (CAS 825654-78-2)
- 4-Chloropyrazolo[1,5-a]pyridin-5-amine (CAS 2097329-59-2)
- 5-Chloro-1H-indazol-7-amine (CAS 221681-89-6)
- ethyl 2-bromo-5-(trifluoromethyl)-1H-imidazole-4-carboxylate (CAS 444326-49-2)
- 6-Bromo-5-methyl-3-pyridineboronic Acid (CAS 1003043-34-2)
- rel-(2S,4R)-1-(tert-Butoxycarbonyl)-4-(tert-butyl)piperidine-2-carboxylic acid (CAS 123811-86-9)
- 3-Fluoro-1-methylpiperidin-4-amine dihydrochloride (CAS 2306277-16-5)
- 2-((Phenethylimino)methyl)phenol (CAS 49792-36-1)
- [1-(4-methylbenzyl)piperidin-4-yl]methanol,HCL (CAS 1211479-04-7)
- 3-(Benzhydryloxy)-8-azabicyclo[3.2.1]octane hydrochloride (CAS 78503-32-9)
- 3-benzyl-5-(3-chlorophenyl)-6-methyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 744227-39-2)
- N-(6-Vinylpyridin-3-yl)acetamide (CAS 1259929-70-8)
- Xenopsin-Related Peptide 2 (XP-2) (H-9340.0005) (CAS 117442-29-2)
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