2-Amino-5-ethylidene-1-methyl-1H-imidazol-4(5H)-one CAS 119290-24-3
| CAS No. | 119290-24-3 |
| Molecular Formula | C6H9N3O |
| Molecular Weight | 139.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Amino-5-ethylidene-1-methyl-1H-imidazol-4(5H)-one.
2-Amino-5-ethylidene-1-methyl-1H-imidazol-4(5H)-one (CAS 119290-24-3), molecular formula C6H9N3O and molecular weight 139.16 g/mol, is a CATO reference standard with documented purity and traceability.
2-Amino-5-ethylidene-1-methyl-1H-imidazol-4(5H)-one (C6H9N3O) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H9N3O |
| Molecular Weight | 139.16 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 2-Amino-4-methyl-1H-pyrrole-3-carboxamide (CAS 1020110-72-8)
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- 8-Amino-6,7-diazaspiro[3.4]oct-7-en-5-one (CAS 1221791-84-9)
- 1-(4-Amino-1-methyl-1H-pyrazol-5-yl)ethanone (CAS 1229624-60-5)
- 2-Amino-1-(pyrimidin-4-yl)ethan-1-ol (CAS 1240618-30-7)
- (4-Amino-6-methylpyrimidin-2-yl)methanol (CAS 1263216-08-5)
- 1-(4-Amino-1-methyl-1H-pyrazol-3-yl)ethanone (CAS 1287670-54-5)
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Recommended Standards
- [(5s)-5h,6h,7h-pyrrolo[1,2-b][1,2,4]triazol-5-yl]methanol (CAS 1190392-80-3)
- (5-Methoxypyrazin-2-yl)methanamine (CAS 1196155-28-8)
- 2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-one (CAS 118801-67-5)
- 3-formylpyrazine-2-carbonitrile (CAS 1197232-76-0)
- Naphthalen-2-yl 3-(12,14-dioxo-9,10-dihydro-9,10-[3,4]epipyrroloanthracen-13-yl)benzoate (CAS 956206-57-8)
- 1-(7-Bromo-4-methyl-3,4-dihydropyrido[2,3-b]pyrazin-1(2H)-yl)-2,2-dimethylpropan-1-one (CAS 1142192-65-1)
- 5-Chloro-4-methyl-N-(pyridin-3-ylmethyl)-1,3-benzothiazol-2-amine (CAS 941867-44-3)
- Ethyl 2-Bromo-5-fluorobenzoate (CAS 139911-28-7)
- Methyl 2-amino-4-ethylpyrimidine-5-carboxylate (CAS 1823489-86-6)
- Boc-Lys(4-nitro-Z)-OH (CAS 22601-53-2)
- 4-Amino-1-(carboxymethyl)pyridin-1-ium bromide (CAS 289716-32-1)
- 3-(Azepan-1-ylsulfonyl)pyridin-4-ol (CAS 1352530-71-2)
- benzyl 4-(N-(tert-butoxycarbonyl)sulfamoyl)piperazine-1-carboxylate (CAS 1000018-21-2)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
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