5-Nitro-1H-pyrazole-3-carbonitrile CAS 1204246-72-9
| CAS No. | 1204246-72-9 |
| Molecular Formula | C4H2N4O2 |
| Molecular Weight | 138.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Nitro-1H-pyrazole-3-carbonitrile 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 5-Nitro-1H-pyrazole-3-carbonitrile (CAS 1204246-72-9), a certified reference material (molecular formula C4H2N4O2, MW 138.08 g/mol) for analytical method development and quality control.
Structurally, 5-Nitro-1H-pyrazole-3-carbonitrile (C4H2N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 138.08 g/mol, it falls into the low-molecular-weight range. 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 | C4H2N4O2 |
| Molecular Weight | 138.08 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Related Nitro Standards
- 3-Nitro-1H-pyrazole-4-carbonitrile (CAS 39205-87-3)
- 4-Nitro-1H-imidazole-1-carbonitrile (CAS 716316-19-7)
- 4-Nitro-1H-pyrazole-3-carbonitrile (CAS 61241-07-4)
- 5-nitro-2-phenoxybenzoic acid (CAS 54255-63-9)
- 4-Nitro-1H-pyrrole-2-carbonitrile (CAS 59027-78-0)
- 5-Nitro-1H-pyrrole-2-carbonitrile (CAS 67903-53-1)
- 4-Nitro-1-vinyl-1H-pyrazole (CAS 117451-93-1)
- 2-Nitro-5-vinylfuran (CAS 71258-91-8)
Recommended Standards
- 2-Cyanooxazole-4-carboxylic acid (CAS 1167056-75-8)
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- [1,2,5]Oxadiazolo[3,4-d]pyrimidin-7(3H)-one (CAS 17376-66-8)
- 3-(2,4-Dimethylphenyl)-1-(2,5-dimethylphenyl)propan-1-one (CAS 898794-08-6)
- 1-(2-Bromoallyl)-4-(tert-butyl)benzene (CAS 842140-27-6)
- 2-(2-Aminoethyl)-6-(4-methoxyphenyl)pyridazin-3(2H)-one hydrochloride (CAS 1052529-50-6)
- 1-Methyl-2,5-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrole (CAS 1218791-17-3)
- 3-(4-Chlorophenyl)-5-((dimethylamino)methylene)thiazolidin-4-one 1-oxide (CAS 338752-74-2)
- 3-(Benzo[d]thiazol-2-yl)-1,2,4-oxadiazole (CAS 39512-78-2)
- 4-(4-Methoxybenzyl)piperidin-4-amine dihydrochloride (CAS 1707713-80-1)
- 7-Bromo-3-methylbenzofuran (CAS 286837-05-6)
- 5-methyl-4-phenyl-2,3-dihydro-1,3-thiazol-2-one (CAS 90923-95-8)
- Calcitonin C-Terminal Flanking Peptide (human) XTFA (CAS 85916-47-8（free base）)
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