1-(1-Methyl-4-nitro-1h-pyrazol-3-yl)ethan-1-one CAS 137890-10-9
| CAS No. | 137890-10-9 |
| Molecular Formula | C6H7N3O3 |
| Molecular Weight | 169.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-(1-Methyl-4-nitro-1h-pyrazol-3-yl)ethan-1-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
1-(1-Methyl-4-nitro-1h-pyrazol-3-yl)ethan-1-one (CAS 137890-10-9) is a high-purity analytical reference standard with the molecular formula C6H7N3O3 and a molecular weight of 169.14 g/mol.
Structurally, 1-(1-Methyl-4-nitro-1h-pyrazol-3-yl)ethan-1-one (C6H7N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 169.14 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H7N3O3 |
| Molecular Weight | 169.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 1-(1-Methyl-4-nitro-1h-pyrazol-5-yl)ethan-1-one (CAS 1006437-81-5)
- 1-Methyl-4-nitro-1h-pyrrole-2-carboxamide (CAS 13138-77-7)
- 1-(3-Nitro-1H-pyrazol-1-yl)propan-2-one (CAS 131394-08-6)
- 2-Nitro-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazine (CAS 1333508-92-1)
- 1-(1-methyl-3-nitro-1H-pyrazol-5-yl)ethan-1-one (CAS 1368382-45-9)
- 4-Nitro-1-(oxiran-2-ylmethyl)-1h-pyrazole (CAS 137079-02-8)
- 4-Nitro-1-(oxetan-3-yl)-1H-pyrazole (CAS 1393100-37-2)
- 1-(4-Nitro-1h-pyrazol-1-yl)propan-2-one (CAS 32407-65-1)
Recommended Standards
- 5-Trifluoromethyl-piperidin-3-ol (CAS 1378730-75-6)
- (S)-3-(2,2,2-trifluoroethoxy)pyrrolidine (CAS 1384782-51-7)
- 2-methyl-5-(trifluoromethyl)morpholine (CAS 1375471-67-2)
- (4-(Trifluoromethyl)pyrrolidin-2-yl)methanol (CAS 1427380-22-0)
- 5-(((3-Chlorophenyl)sulfonyl)methyl)-N-hydroxyisoxazole-3-carboxamide (CAS 823220-25-3)
- 898767-44-7 3-(3-Fluorophenyl)-1-[4-(trifluoromethyl)phenyl]propan-1-one DTXSID80644542 (CAS 898767-44-7)
- Picloram (CAS 1918-02-1)
- Ethyl 5-(4-(dimethylamino)phenyl)-2-((1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)methylene)-7-methyl-3-oxo-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 512811-75-5)
- 3-(Chloromethyl)-1-methyl-1H-pyrazole hydrochloride (CAS 88529-80-0)
- 5-(5-chloropentyl)-1-cyclohexyl-1H-Tetrazole (CAS 78760-14-2)
- 6-Bromo-1H-indazole-5-carboxylic acid methyl ester (CAS 1396762-16-5)
- (3,6-Dioxocyclohexa-1,4-dien-1-yl)methyl 2-(imidazolidin-4-yl)acetate (CAS 63757-76-6)
- [1,1':4',1''-Terphenyl]-4,4''-bis(carboximidamide) (CAS 851340-73-3)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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