2,4-Dihydro-5-methoxy-4-methyl-3H-1,2,4-triazol-3-one CAS 135302-13-5
Purity >85%In StockPharmaceutical Standards
| CAS No. | 135302-13-5 |
| Molecular Formula | C4H7N3O2 |
| Molecular Weight | 129.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Dihydro-5-methoxy-4-methyl-3H-1,2,4-triazol-3-one (CAS 135302-13-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H7N3O2. Molecular weight: 129.12 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H7N3O2 |
| Molecular Weight | 129.12 g/mol |
| Purity | >85% |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 3 |
Related Dihydro Standards
- methyl 4,5-dihydro-1,2-oxazole-5-carboxylate (CAS 15055-75-1)
- 2-oxo-2,3-dihydro-1,3-oxazole-4-carboxylic acid (CAS 406183-40-2)
- 5-Oxo-4,5-dihydro-1H-[1,2,4]triazole-3-carboxylic acid (CAS 4538-16-3)
- 4-ethyl-2,3-dihydro-1,3-thiazol-2-one (CAS 1250781-53-3)
- 5,6-Dihydro-2h-thiopyran-3-carbaldehyde (CAS 30058-79-8)
- 5-Oxo-2,5-dihydro-1,2,4-oxadiazole-3-carboxylic acid (CAS 1257265-24-9)
- 4-Oxo-4,5-dihydro-1,2,5-oxadiazole-3-carboxylic acid (CAS 66313-36-8)
- 3,4-Dihydro-2-ethoxy-2H-pyrane (CAS 103-75-3)
Recommended Standards
- Morinidazole Impurity 21 (CAS CATO-C4X-219621)
- Ethyl Azidoacetate (CAS 637-81-0)
- Aprepitant Impurity 59 (CAS 1341734-61-9)
- 2-Amino-3-(4-biphenylyl)propanoic Acid (CAS 76985-08-5)
- 2- (3-chloropropyl-1-en-2-yl) -1,1,5,5-tetramethylcyclohexane (CAS 63216-72-8)
- 6-Bromo-2-(4-nitrophenyl)imidazo[1,2-a]pyridine (CAS 321945-25-9)
- Olanzapine impurity 49 (CAS CATO-C4X-117849)
- Ethyl 5-[(E)-N'-[(4-chlorophenyl)methoxy]imidamido]-3-[2-(2,4-dichlorobenzoyloxy)ethoxy]-1,2-oxazole-4-carboxylate (CAS 303997-08-2)
- 7-(Trifluoromethyl)-1,2,3,4-tetrahydro-5H-benzo[b]azepin-5-one (CAS 851045-54-0)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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