Pyrimidine-2,5-diamine dihydrochloride CAS 79858-68-7
| CAS No. | 79858-68-7 |
| Molecular Formula | C4H6N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyrimidine-2,5-diamine dihydrochloride (CAS 79858-68-7), a certified reference material (molecular formula C4H6N4HCl, MW 146.58 g/mol) for analytical method development and quality control.
Based on its molecular formula C4H6N4HCl, Pyrimidine-2,5-diamine dihydrochloride contains a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 146.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C4H6N4 2*HCl |
| Molecular Weight | 146.58 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Pyrimidine Standards
- Pyrimidine-2-carboximidhydrazide (CAS 1005-03-4)
- Pyrimidine-5-carboxaldehyde (CAS 10070-92-5)
- 4,4'-(Pyrimidine-2,5-diyl)dianiline (CAS 102570-64-9)
- Pyrimidine-4-carbaldehyde oxime (CAS 1073-65-0)
- Pyrimidine-5-carboxamidine hydrochloride (CAS 1195613-50-3)
- Pyrimidine-4-sulfonyl chloride (CAS 1198596-10-9)
- Pyrimidine-2,4,6-tricarbaldehyde (CAS 1209493-65-1)
- Pyrimidine-2,5-dicarboxylic acid (CAS 127527-24-6)
Recommended Standards
- Di-tert-butyl 1-(5-(methoxycarbonyl)-4-methylthiophen-2-yl)hydrazine-1,2-dicarboxylate (CAS 2852760-46-2)
- thieno[2,3-c]pyridin-4-ol (CAS 73224-08-5)
- 1-(5-Ethoxy-1-methyl-4-nitro-1H-pyrrol-2-yl)ethanone (CAS 199684-11-2)
- Reserpine Impurity 10 (CAS CATO-C4X-140410)
- n1,n1-Diethyl-n2-(1-(furan-2-yl)ethyl)ethane-1,2-diamine (CAS 1019468-26-8)
- Ethyl 2-hydroxy-3,3-diphenylpropanoate (CAS 5449-42-3)
- N-(1-methylcycloheptyl)thietan-3-amine (CAS 1862881-05-7)
- Daprodustat Impurity 13 (CAS 4833-41-4)
- Nizofenone (CAS 54533-85-6)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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