5-Hydroxy-5-methylhydantoin CAS 10045-58-6
| CAS No. | 10045-58-6 |
| Molecular Formula | C4H6N2O3 |
| Molecular Weight | 130.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Hydroxy-5-methylhydantoin (CAS 10045-58-6), molecular formula C4H6N2O3 and molecular weight 130.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Hydroxy-5-methylhydantoin (C4H6N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 130.10 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5-Hydroxy-5-methylhydantoin 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 | C4H6N2O3 |
| Molecular Weight | 130.10 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 2 |
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- (E)-4-Hydroxy-4-methylpent-2-enoic acid (CAS 10208-72-7)
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Recommended Standards
- 3,5-Difluorophenol (CAS 2713-34-0)
- 3,6-Difluoro-4-methylpyridazine (CAS 1026843-07-1)
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- 2,6-Difluoropyridin-3-amine (CAS 108118-69-0)
- 5-(2,4-Dimethylthiazol-5-yl)-3,4-dimethylisoxazole (CAS 61314-57-6)
- (3-Bromophenyl)(imino)(methyl)-lambda6-sulfanone (CAS 1789700-09-9)
- 3-Bromo-2-(3-chlorophenyl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole (CAS 2416673-67-9)
- 5-(2-Cyclobutylpyrimidin-4-yl)-4-methylthiazol-2-amine (CAS 1217487-41-6)
- 2-(4-(tert-Butoxycarbonyl)-1,4-diazepan-1-yl)-2-(thiophen-3-yl)acetic acid (CAS 885275-85-4)
- n-Benzyl-3-chloroaniline (CAS 50798-95-3)
- (E)-3-methyl-1-(3-oxo-3-phenylprop-1-en-1-yl)pyridin-1-ium chloride (CAS 19518-26-4)
- ethyl 6-(3-azidoazetidin-1-yl)pyridine-3-carboxylate (CAS 1803589-21-0)
- 3-Amino-5-[4-fluoro-3-(trifluoromethyl)phenyl]pyrazole (CAS 1040724-42-2)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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