5,6-Diamino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione hydrochloride CAS 50996-16-2
| CAS No. | 50996-16-2 |
| Molecular Formula | C6H10N4O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,6-Diamino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione hydrochloride (C6H10N4O2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 5,6-Diamino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione hydrochloride (CAS 50996-16-2), a certified reference material (molecular formula C6H10N4O2HCl, MW 206.63 g/mol) for analytical method development and quality control.
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 | C6H10N4O2 HCl |
| Molecular Weight | 206.63 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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
- 4-(Dodecyloxy)aniline (CAS 65039-19-2)
- 6-(2-Aminoethyl)-4-nitropicolinonitrile (CAS 1393552-33-4)
- 2-Chloro-4-methylpyrido[2,3-b]pyrazin-3(4H)-one (CAS 80708-26-5)
- tert-Butyl n-[1-(piperidin-4-yl)azetidin-3-yl]carbamate (CAS 883546-82-5)
- 4-Chloro-2-(trifluoromethyl)-7H-pyrrolo[2,3-d]pyrimidine (CAS 1060815-85-1)
- Cenobamate impurity 11 (CAS CATO-C4X-241611)
- Ironiitris(1,10-phenanthrolinE)hexafluorophosphate (CAS 17112-07-1)
- 2-(3-Methylphenyl)quinoline-4-carbonyl chloride (CAS 1160264-70-9)
- 1-Cyclopropyl-4-ethenylbenzene (CAS 19824-39-6)
- [His]1-Acetylated Semaglutide (CAS CATO-C4X-2226219)
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