7-chloro-5-methyl-1H-pyrazolo[4,3-b]pyridine CAS 94220-38-9
| CAS No. | 94220-38-9 |
| Molecular Formula | C7H14ClN3 |
| Molecular Weight | 175.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H14ClN3, 7-chloro-5-methyl-1H-pyrazolo[4,3-b]pyridine contains a nitrile group, chlorine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 175.66 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.
7-chloro-5-methyl-1H-pyrazolo[4,3-b]pyridine (CAS 94220-38-9), molecular formula C7H14ClN3 and molecular weight 175.66 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-chloro-5-methyl-1H-pyrazolo[4,3-b]pyridine 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.
Physical & Chemical Properties
| Molecular Formula | C7H14ClN3 |
| Molecular Weight | 175.66 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
- 5-Chloro-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 1040683-00-8)
- 7-chloro-1-methyl-pyrazolo[4,3-b]pyridine (CAS 1057672-72-6)
- 2-chloro-6-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 1060816-56-9)
- 7-chloro-2-methyl-3H-imidazo[4,5-b]pyridine (CAS 1086423-62-2)
- 2-Chloro-N-cyclopentyl-N-methylacetamide (CAS 1095028-85-5)
- 2-Chloro-N-(cyclopentylmethyl)acetamide (CAS 1096841-92-7)
- 4-chloro-7-methyl-1H-pyrazolo[4,3-c]pyridine (CAS 1159828-57-5)
- 4-chloro-6-methyl-1H-pyrazolo[4,3-c]pyridine (CAS 1159828-70-2)
Recommended Standards
- 7-chloro-2,3-dihydrobenzofuran-3-amine (CAS 939757-40-1)
- 7-chloro-5-methyl-imidazo[1,2-a]pyrimidine (CAS 2681279-09-2)
- 7-chloro-1-methyl-1H-pyrazolo[3,4-c]pyridine (CAS 957760-15-5)
- 8-chloro-3-methylimidazo[1,5-a]pyrazine (CAS 56468-24-7)
- 3-Bromo-6-methoxyimidazo[1,2-a]pyrazine (CAS 1276056-77-9)
- Ethyl 3-methyl-4-oxo-3,4-dihydroimidazo[5,1-d][1,2,3,5]tetrazine-8-carboxylate (CAS 196806-14-1)
- (5-Chloro-2-(methylamino)phenyl)(cyclohexyl)methanone (CAS 122908-18-3)
- Ethyl (R)-1-Boc-3-pyrrolidinecarboxylate (CAS 1314419-65-2)
- Dimethyl 2-(hydroxymethyl)-2-phenylmalonate (CAS 124604-01-9)
- 2-Ethylidene-1,2,3,4,4a,5,8,8a-octahydro-1,4:5,8-dimethanonaphthalene (CAS 38233-76-0)
- (1S,2R)-Ethyl 2-hydroxycyclobutanecarboxylate (CAS 213478-58-1)
- 3-Methoxy-3-(trifluoromethyl)cyclobutan-1-amine hydrochloride (CAS 2375267-84-6)
- 2,2',2'',2'''-(Hydrazine-1,1,2,2-tetrayl)tetrakis(ethan-1-ol) (CAS 55467-91-9)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
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