3-Amino-1-methylpyrazole CAS 1904-31-0
| CAS No. | 1904-31-0 |
| Molecular Formula | C4H7N3 |
| Molecular Weight | 97.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Amino-1-methylpyrazole is closely related to a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Amino-1-methylpyrazole (CAS 1904-31-0), molecular formula C4H7N3 and molecular weight 97.12 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Amino-1-methylpyrazole (C4H7N3) contains a nitrile group. 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 97.12 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 3-Amino-1-methylpyrazole 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 | C4H7N3 |
| Molecular Weight | 97.12 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.) | 1957 |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 5-Amino-1-methylpyrazole (CAS 1192-21-8)
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- 4-Amino-1-methylpyrazole (CAS 69843-13-6)
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Recommended Standards
- 2-Azabicyclo[2.1.1]hexan-3-one (CAS 1785611-04-2)
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- 2-(1-Hydroxyethyl)acrylonitrileDISCONTINUED (CAS 19362-94-8)
- 4-Chloro-1-(3-fluorophenyl)-6-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1269705-39-6)
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- N-(4-Chlorobenzyl)-N-(cyclopropylmethyl)pyrrolidin-3-amine (CAS 820984-41-6)
- 1098346-38-3 2-Chloro-N-(3-cyano-6-methyl-4,5,6,7-tetrahydro-1-benzothien-2-yl)propanamide MFCD11547000 (CAS 1098346-38-3)
- 1-(4-Butoxyphenyl)-2-(4-nitrophenyl)diazene (CAS 118524-93-9)
- Oxazole-2-carbaldehyde (CAS 65373-52-6)
- 3,5-Dichloro-4-isopropoxybenzylamine hydrochloride (CAS 1052415-02-7)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
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