3-(4-Chlorophenyl)-7-hydrazinyl-2,5-dimethylpyrazolo[1,5-a]pyrimidine CAS 849910-65-2
| CAS No. | 849910-65-2 |
| Molecular Formula | C14H14ClN5 |
| Molecular Weight | 287.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H14ClN5, 3-(4-Chlorophenyl)-7-hydrazinyl-2,5-dimethylpyrazolo[1,5-a]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 287.75 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-(4-Chlorophenyl)-7-hydrazinyl-2,5-dimethylpyrazolo[1,5-a]pyrimidine (CAS 849910-65-2), molecular formula C14H14ClN5 and molecular weight 287.75 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), 3-(4-Chlorophenyl)-7-hydrazinyl-2,5-dimethylpyrazolo[1,5-a]pyrimidine 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 | C14H14ClN5 |
| Molecular Weight | 287.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chlorophenyl Standards
- 1-(3-Chlorophenyl)-N-propyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 890943-17-6)
- 1-(4-Chlorophenyl)-N-isopropyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 393784-05-9)
- 3-(2-Chlorophenyl)-7-hydrazinyl-2,5-dimethylpyrazolo[1,5-a]pyrimidine (CAS 900297-26-9)
- 4-[(2-Chlorophenyl)methyl]-2,3,4,5-tetrahydro-1,4-benzoxazepin-3-one (CAS 1326871-55-9)
- (E)-3-(4-Chlorophenyl)-N-(3-methoxyphenyl)acrylamide (CAS 1649486-65-6)
- (2Z)-1-(2-Chlorophenyl)-3-(dimethylamino)-2-methanesulfonylprop-2-en-1-one (CAS 251307-30-9)
- (2Z)-1-(4-Chlorophenyl)-3-(dimethylamino)-2-methanesulfonylprop-2-en-1-one (CAS 344275-55-4)
- (4-Chlorophenyl)(3-methyl-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)methanone (CAS 338747-60-7)
Recommended Standards
- 3-(4-Trifluoromethylphenyl)pyrazole (CAS 625-59-2)
- 2-chloro-9-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-7H-purin-8-one (CAS 2646592-53-0)
- 6-(4-Chlorobenzyl)-5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 885949-37-1)
- 2-chloro-9-(3-oxa-8-azabicyclo[3.2.1]octan-8-yl)-7H-purin-8-one (CAS 2646592-49-4)
- 5-((2R,3R,4S)-3,4-Diaminotetrahydrothiophen-2-yl)pentanoic acid dihydrobromide (CAS 470692-46-7)
- 6-Chloro-N4-methyl-N4-(pyridin-2-ylmethyl)pyrimidine-2,4-diamine (CAS 1376336-01-4)
- N-Hydroxy-1-methyl-1H-imidazole-2-carboximidamide (CAS 468067-81-4)
- Zidovudine Impurity N1 (CAS 365-07-1)
- 1-(Isoxazol-3-yl)-1H-pyrrole-2-carbaldehyde (CAS 383135-78-2)
- 2-((4-Allyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-(benzyloxy)phenyl)acetamide (CAS 573698-19-8)
- tert-Butyl (6-(piperidin-4-ylmethyl)pyridin-2-yl)carbamate (CAS 1416438-55-5)
- 4-Bromo-5-methoxy-2,3-dihydro-1H-indene (CAS 103040-19-3)
- 2-((Tetrahydro-2H-pyran-4-yl)amino)benzoic acid (CAS 1154887-21-4)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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