5-amino-2-methyl-2,3-dihydro-1H-pyrazol-3-one CAS 74530-10-2
| CAS No. | 74530-10-2 |
| Molecular Formula | C4H7N3O |
| Molecular Weight | 113.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-amino-2-methyl-2,3-dihydro-1H-pyrazol-3-one 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.
5-amino-2-methyl-2,3-dihydro-1H-pyrazol-3-one (CAS 74530-10-2), molecular formula C4H7N3O and molecular weight 113.12 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-amino-2-methyl-2,3-dihydro-1H-pyrazol-3-one (C4H7N3O) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 113.12 g/mol, it falls into the low-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 | C4H7N3O |
| Molecular Weight | 113.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 3 |
Related amino Standards
- 3-Amino-4-hydroxymethylpyrazole (CAS 1001635-21-7)
- 4-amino-1-methyl-2,5-dihydro-1H-imidazol-2-one (CAS 1190594-65-0)
- 2-Amino-5,6-dihydropyrimidin-4(3H)-one (CAS 15231-27-3)
- (2-Amino-1H-imidazol-5-yl)methanol (CAS 59608-92-3)
- (3-Amino-1H-pyrazol-5-yl)methanol (CAS 948571-48-0)
- 2-amino-1-methyl-1H-imidazol-4-ol (CAS 616875-85-5)
- 2-Amino-1-methyl-1H-imidazol-5(4H)-one (CAS 34293-24-8)
- 2-Amino-2-cyano-N-methylacetamide (CAS 50531-01-6)
Recommended Standards
- 5-Amino-1-methyl-1H-pyrazol-3-ol (CAS 857985-10-5)
- 5-Hydrazono-4-methyl-4,5-dihydro-1h-1,2,4-triazole (CAS 551930-25-7)
- 5-(Aminomethyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 757161-05-0)
- 5-Methoxy-1H-pyrazol-3-amine (CAS 41307-23-7)
- 1,1'-(Oxybis(4,1-phenylene))bis(ethan-1-one) (CAS 2615-11-4)
- 1-(2,2-Difluorobenzo[1,3]dioxol-5-yl)-cyclopropanecarboxylic acid (CAS 862574-88-7)
- Cyclohexylchloromethyl phenyl Sulfoxide (CAS 104354-60-1)
- 7-Ethynyl-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (CAS 1824105-71-6)
- 1-Bromo-4-chloro-2-(chloromethyl)benzene (CAS 1261678-76-5)
- 3-Hydroxy-6-methoxy-2,3-dihydro-1h-indol-2-one (CAS 1248148-96-0)
- Thieno[2,3-c]pyridine-2-sulfonyl chloride (CAS 1191545-48-8)
- Mexiletine Impurity 4 (CAS 57204-78-1)
- Methyl 4-chloro-3-isopropylbenzoate (CAS 1809168-66-8)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
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