(5-Methyl-3-nitro-1h-pyrazol-1-yl)methanol CAS 956438-51-0
| CAS No. | 956438-51-0 |
| Molecular Formula | C5H7N3O3 |
| Molecular Weight | 157.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (5-Methyl-3-nitro-1h-pyrazol-1-yl)methanol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 157.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
(5-Methyl-3-nitro-1h-pyrazol-1-yl)methanol (CAS 956438-51-0), molecular formula C5H7N3O3 and molecular weight 157.13 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (5-Methyl-3-nitro-1h-pyrazol-1-yl)methanol 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.
Physical & Chemical Properties
| Molecular Formula | C5H7N3O3 |
| Molecular Weight | 157.13 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 2-(5-Nitro-1H-pyrazol-1-yl)ethan-1-ol (CAS 1026867-48-0)
- (1-Methyl-4-nitro-1H-pyrazol-3-yl)methanol (CAS 1201935-82-1)
- (1-Methyl-3-nitro-1H-pyrazol-5-yl)methanol (CAS 1227210-46-9)
- (1-Methyl-5-nitro-1H-pyrazol-3-yl)methanol (CAS 1260659-40-2)
- (1-Methyl-2-nitro-1H-imidazol-4-yl)methanol (CAS 50441-07-1)
- (1-methyl-3-nitro-1H-pyrazol-4-yl)methanol (CAS 64182-20-3)
- (1-Methyl-4-nitro-1H-imidazol-5-yl)methanol (CAS 85012-71-1)
- (1-Methyl-5-nitro-1H-imidazol-4-yl)methanol (CAS 85012-70-0)
Recommended Standards
- (3-Methyl-2-nitro-3H-imidazol-4-yl)methanol (CAS 39070-14-9)
- (5-Methyl-4-nitro-1H-pyrazol-3-yl)methanol (CAS 65325-31-7)
- (2-Methyl-5-nitro-1H-imidazol-1-yl)methanol (CAS 392736-47-9)
- (R)-2-Amino-2-(1-hydroxy-1H-pyrazol-4-yl)acetic acid (CAS 956618-96-5)
- 3-Azidoquinoline (CAS 14213-02-6)
- 6-Methoxy-2,2’,4,4’-tetrabromodiphenyl ether (CAS 102739-99-1)
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