5,6-Dihydroxy-4(3H)-pyrimidinone CAS 98020-41-8
| CAS No. | 98020-41-8 |
| Molecular Formula | C4H4N2O3 |
| Molecular Weight | 128.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,6-Dihydroxy-4(3H)-pyrimidinone (CAS 98020-41-8), molecular formula C4H4N2O3 and molecular weight 128.09 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 5,6-Dihydroxy-4(3H)-pyrimidinone is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 128.09 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.
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), 5,6-Dihydroxy-4(3H)-pyrimidinone 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 | C4H4N2O3 |
| Molecular Weight | 128.09 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Dihydroxy Standards
- 3,4-Dihydroxy-1-methyl-1H-pyrrol-2(5H)-one (CAS 156861-94-8)
- 2,3-Dihydroxy-2,3-dimethylbutanenitrile (CAS 26429-38-9)
- 2,4-Dihydroxy-6-methylpyridine (CAS 3749-51-7)
- 4,6-Dihydroxy-2-methylpyrimidine (CAS 40497-30-1)
- 4,6-Dihydroxy-5-methylpyrimidine (CAS 63447-38-1)
- (S)-3,4-dihydroxy-5-methylfuran-2(5H)-one (CAS 119006-88-1)
- 3,4-Dihydroxy-5-methylfuran-2(5H)-one (CAS 3566-57-2)
- 4,4-Dihydroxy-3-methyl-1H-pyrazol-5(4H)-one (CAS 221325-59-3)
Recommended Standards
- 5-(Hydroxymethylene)imidazolidine-2,4-dione (CAS 597528-45-5)
- 5-Amino-1,3,4-oxadiazole-2-carboxamide (CAS 4970-55-2)
- 4-Oxo-4,5-dihydro-1H-imidazole-2-carboxylic acid (CAS 861293-24-5)
- 5-Amino-2H-1,2,3-triazole-4-carboxylic acid (CAS 20420-84-2)
- Diallyl Disulfide (CAS 2179-57-9)
- 2-Chloro-6-methylpyrimidine-4-carbonyl chloride (CAS 306960-81-6)
- (3-methylpyrazin-2-yl)methanamine dihydrochloride (CAS 2288710-30-3)
- (2r)-2-Amino-2-(2-methyl-5-nitrophenyl)ethan-1-ol (CAS 1213586-83-4)
- 6-(hydroxymethyl)pyridazin-3-ol (CAS 1248565-70-9)
- 8-Hydroxy-4,5-dihydro-1H-benzo[c]azepin-3(2H)-one (CAS 165530-14-3)
- 2-(chloromethyl)-5-(2-chlorophenyl)-1,3-oxazole (CAS 64640-16-0)
- 1-Butyl-3-methylpyridin-1-ium hexafluorophosphate(V) (CAS 845835-03-2)
- (2r,5r)-2-Amino-6,6,6-trifluoro-5-(methylamino)hexanoic acid hydrochloride (CAS 1485532-34-0)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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