2-Methyl-7-(3-nitrophenyl)pyrazolo[1,5-a]pyrimidine CAS 832739-45-4
| CAS No. | 832739-45-4 |
| Molecular Formula | C13H10N4O2 |
| Molecular Weight | 254.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Methyl-7-(3-nitrophenyl)pyrazolo[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.
CATO supplies 2-Methyl-7-(3-nitrophenyl)pyrazolo[1,5-a]pyrimidine (CAS 832739-45-4), a certified reference material (molecular formula C13H10N4O2, MW 254.24 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 2-Methyl-7-(3-nitrophenyl)pyrazolo[1,5-a]pyrimidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 254.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C13H10N4O2 |
| Molecular Weight | 254.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 4 |
Related Methyl Standards
- 2-(4-Nitrophenyl)isoindolin-1-one (CAS 4770-74-5)
- 3-(4-Nitrophenyl)indolin-2-one (CAS 53497-60-2)
- 5-Methyl-2-(4-nitrophenyl)benzo[d]oxazole (CAS 893-17-4)
- n-(4-Nitrophenyl)-1h-1,3-benzodiazol-2-amine (CAS 26946-70-3)
- (4R)-2-(3-Nitrophenyl)-1,3-thiazolidine-4-carboxylic acid (CAS 222404-28-6)
- (4R)-2-(4-Nitrophenyl)-1,3-thiazolidine-4-carboxylic acid (CAS 218944-01-5)
- 2-(3-Nitrophenyl)-1,3-thiazolidine-4-carboxylic acid (CAS 69570-81-6)
- 2-(4-Nitrophenyl)-1,3-thiazolidine-4-carboxylic acid (CAS 72678-85-4)
Recommended Standards
- 2-Methyl-6-nitro-3-phenylpyrazolo[1,5-a]pyrimidine (CAS 932162-86-2)
- 2-Oxo-N-phenylbenzo[d]oxazole-3(2H)-carboxamide (CAS 7039-00-1)
- 2-Methyl-1-nitroacridin-9(10H)-one (CAS 89705-29-3)
- 3-((2-(1,2,4-Oxadiazol-3-yl)pyridin-4-yl)oxy)aniline (CAS 943632-46-0)
- N-Nitroso Cimetidine 3 (CAS CATO-C4X-158923)
- 1,4-Dibromobutane-2,3-diol (CAS 14396-65-7)
- Ethyl 3-(cyclopropylmethyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidine-7-carboxylate (CAS 1923082-74-9)
- 4-(Difluoromethyl)-2-methylaniline (CAS 1261861-00-0)
- (3R)-1-[5,6-Dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8H)-yl]-3-[[(1R)-1-phenylethyl]amino]-4-(2,4,5-trifluorophenyl)-1-butanone (CAS 1169707-30-5)
- 4-Amino-2-bromoacetophenone (CAS 23442-14-0)
- 2-(Benzylamino)-N-(3,4-difluorophenyl)-2-thioxoacetamide (CAS 882078-93-5)
- 6-Benzoylcyclohex-3-ene-1-carboxylic acid (CAS 31211-31-1)
- Ertugliflozin Impurity 2 (CAS CATO-C4X-30112)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
Why CATO?
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