4-Aminopyrimidine-5-carboxylic acid hydrate CAS 90993-92-3
| CAS No. | 90993-92-3 |
| Molecular Formula | C5H5N3O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Aminopyrimidine-5-carboxylic acid hydrate (CAS 90993-92-3), a certified reference material (molecular formula C5H5N3O2H2O, MW 157.13 g/mol) for analytical method development and quality control.
Structurally, 4-Aminopyrimidine-5-carboxylic acid hydrate (C5H5N3O2H2O) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 157.13 g/mol, it falls into the medium-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.
As a certified reference material (CRM), 4-Aminopyrimidine-5-carboxylic acid hydrate 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.
Physical & Chemical Properties
| Molecular Formula | C5H5N3O2 H2O |
| 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.) | 1982 |
| Nitrogen Atoms | 3 |
Related Aminopyrimidine Standards
- Ethyl 6-aminopyrimidine-4-carboxylate (CAS 1097256-49-9)
- 5-Aminopyrimidine-2,4,6(1H,3H,5H)-trione (CAS 118-78-5)
- 6-Aminopyrimidine-4(1H)-thione (CAS 1193-23-3)
- 2-Aminopyrimidine-5-carbaldehyde (CAS 120747-84-4)
- 2-Aminopyrimidine-5-methanol (CAS 120747-85-5)
- 2-Aminopyrimidine-5-carbonyl bromide (CAS 124491-44-7)
- 4-Aminopyrimidine-5-carbaldehyde hydrochloride (CAS 1311254-78-0)
- Methyl 5-Aminopyrimidine-4-carboxylate (CAS 1352201-49-0)
Recommended Standards
- N-(4-Bromobenzyl)-2-chloro-N-ethylacetamide (CAS 1353955-64-2)
- 1,3-Difluoro-2-(3-fluoro-4-methylphenoxy)-5-(trifluoromethyl)benzene (CAS 2244085-43-4)
- (E)-6-chloro-2,3,4,9-tetrahydro-1H-carbazol-1-one oxime (CAS 156424-67-8)
- Methyl 3-amino-1,2,3,4-tetrahydroquinoline-6-carboxylate dihydrochloride (CAS 1384265-44-4)
- Ethyl 2-oxo-2-(pyridin-4-yl)acetate (CAS 156093-78-6)
- tert-butyl 2-fluoro-3-oxo-8-azaspiro[4.5]decane-8-carboxylate (CAS 2306277-12-1)
- 2,3-Difluoro-5-methylacetophenone (CAS 1806306-82-0)
- 3-(4-Chlorobenzyl)oxazolidin-2-one (CAS 6317-28-8)
- 3-(2,2-Dimethylbenzo[d][1,3]dioxol-5-yl)-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 62052-35-1)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
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