4,6-Dichloro-3-iodo-1H-pyrazolo[4,3-c]pyridine CAS 1658467-36-7
| CAS No. | 1658467-36-7 |
| Molecular Formula | C6H2Cl2IN3 |
| Molecular Weight | 313.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4,6-Dichloro-3-iodo-1H-pyrazolo[4,3-c]pyridine (CAS 1658467-36-7), molecular formula C6H2Cl2IN3 and molecular weight 313.91 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine/iodine substitution, an aromatic ring system, 4,6-Dichloro-3-iodo-1H-pyrazolo[4,3-c]pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 313.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C6H2Cl2IN3 |
| Molecular Weight | 313.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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.) | 1993 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 3 |
Related Dichloro Standards
- 2,4-Dichloro-6-iodopyrrolo[2,1-f][1,2,4]triazine (CAS 1313738-97-4)
- 2,4-Dichloro-6-iodo-7H-pyrrolo[2,3-d]pyrimidine (CAS 1638760-47-0)
- 5,7-Dichloro-3-iodo-1H-pyrazolo[3,4-c]pyridine (CAS 1934666-20-2)
- 3,5-Dichloro-6-iodopyrazolo[1,5-a]pyrimidine (CAS 2640353-16-6)
- 5,7-Dichloro-3-iodopyrazolo[1,5-a]pyrimidine (CAS 754211-05-7)
- 1,5-Dichloro-2-methoxy-4-(4-nitrophenoxy)benzene (CAS 125138-49-0)
- (E)-3,5-dichloro-N-(2-(3-methyl-4-nitroisoxazol-5-yl)vinyl)aniline (CAS 240799-67-1)
- Ethyl 4-(3,4-dichloro-2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoate (CAS 65833-17-2)
Recommended Standards
- 1,3-dibromotetrafluorobenzene (CAS 1559-87-1)
- 4,6-Dibromo-3-fluoro-2-nitroaniline (CAS 1951441-69-2)
- 3-(4-((Tert-butyldimethylsilyl)oxy)-2-chlorophenyl)azetidin-3-ol (CAS 2166106-04-1)
- 2,4-Dibromo-6-fluoro-3-hydroxybenzoic acid (CAS 91659-47-1)
- 4-(4-(2-Fluoroethyl)piperazin-1-yl)-2-methoxyaniline (CAS 1807809-74-0)
- Methyl 5,8-dioxo-7-(2-(pyridin-2-yl)ethyl)hexahydro-3H-thiazolo[3,4-a]pyrazine-3-carboxylate (CAS 321574-50-9)
- ID6YB4W3V8 881202-45-5 Serdemetan [INN] JNJ 26854165 UNII-ID6YB4W3V8 N-(2-(1H-Indol-3-yl)ethyl)-n'-(pyridin-4-yl)benzene-1,4-diamine Serdemetan JNJ-26854165 (CAS 881202-45-5)
- N-((1-Ethylpyrrolidin-2-yl)methyl)-2-(naphthalen-2-yl)quinolin-4-amine (CAS 918969-89-8)
- Ethyl 3-(benzyloxy)-1-cyanocyclobutanecarboxylate (CAS 1181816-13-6)
- 4-Fluoro-3-methyl-5-sulfamoylbenzoic acid (CAS 1344370-87-1)
- N-Hydroxypivalimidamide (CAS 42956-75-2)
- 2,6-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1111096-09-3)
- 1-[4-(trifluoromethyl)phenyl]-1H-1,2,4-triazol-3-ol (CAS 522634-31-7)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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