5,6-Diamino-2,4-dihydroxypyrimidine hemisulfate CAS 63981-35-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 63981-35-1 |
| Molecular Formula | 2*C4H6N4O2 H2O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,6-Diamino-2,4-dihydroxypyrimidine hemisulfate (CAS 63981-35-1) is a pharmaceutical standards certified reference material from CATO. Molecular formula: 2*C4H6N4O2 H2O4S. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | 2*C4H6N4O2 H2O4S |
| Molecular Weight | 240.19 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.) | 1975 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Diamino Standards
- 2,6-Diamino-3,5-di-(trimethylsilyl)acetylenylpyridine (CAS 1000342-76-6)
- 2,6-Diamino-4-(benzyloxy)pyrimidine (CAS 100061-59-4)
- 2,6-diamino-3H,7H,8H-imidazo[4,5-g]quinazolin-8-one (CAS 1001242-71-2)
- 4,5-diamino-2-thiouracil (CAS 1004-76-8)
- 5,6-Diamino-3,3-dimethylindolin-2-one (CAS 100568-79-4)
- 5-((2,6-Diamino-9H-purin-9-yl)methoxy)-2-hydroxy-1,3,2-dioxaphosphinane 2-oxide (CAS 100683-67-8)
- 2,8-Diamino-9-benzyl-1H-purin-6(9H)-one (CAS 100890-94-6)
- 4-(N-[2,4-Diamino-6-pteridinylmethyl]amino)benzoic acid sodium salt (CAS 100929-45-1)
Recommended Standards
- N-(4-chloro-2-methylphenyl)-8-methyl-4H-thieno[3,2-c]thiochromene-2-carboxamide (CAS 477887-23-3)
- 9-Chloro-2,3,4,5-tetrahydro-1H-benzo[b]azepine (CAS 939759-19-0)
- (E)-N-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-2-(4-isopropylphenyl)ethene-1-sulfonamide (CAS 478246-24-1)
- Formoterol Impurity 69 (CAS 100865-09-6)
- 1-(4-Chlorobenzoyl)piperazine (CAS 54042-47-6)
- 6'-((6-Aminopyrimidin-4-yl)amino)-8'-methyl-1'H-spiro[cyclohexane-1,3'-imidazo[1,5-a]pyridine]-1',5'(2'H)-dione hydrochloride (CAS 1849590-02-8)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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