Pyrimido[5,4-d]Pyrimidine Impurity 7 CAS 36926-31-5
| CAS No. | 36926-31-5 |
| Molecular Formula | C16H20Cl2N6 |
| Molecular Weight | 367.28 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.
CATO supplies Pyrimido[5,4-d]Pyrimidine Impurity 7 (CAS 36926-31-5), a certified reference material (molecular formula C16H20Cl2N6, MW 367.28 g/mol) for analytical method development and quality control.
Pyrimido[5,4-d]Pyrimidine Impurity 7 (C16H20Cl2N6) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Pyrimido[5,4-d]Pyrimidine Impurity 7 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H20Cl2N6 |
| Molecular Weight | 367.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Pyrimido Standards
- Pyrimido[5,4-d]Pyrimidine Impurity 9 (CAS 1159977-42-0)
- Pyrimido[5,4-e][1,2,4]triazin-5-amine (CAS 19359-15-0)
- 7H-Pyrimido[4,5-d]azepine-7-carboxylic acid, 4-(dimethylamino)-5,6,8,9-tetrahydro-2-(methylsulfonyl)-, phenylmethyl ester (CAS 1956322-14-7)
- Pyrimido[5,4-d]Pyrimidine Impurity 2 (CAS 32980-71-5)
- Pyrimido[4',5':4,5]thieno[2,3-b]quinoline-4-thiol (CAS 917750-30-2)
- 4-{5H-pyrimido[5,4-b]indol-4-yl}morpholine (CAS 107400-99-7)
- 4-(9H-Pyrimido[4,5-b]indol-4-yl)morpholine (CAS 338966-36-2)
- 1-{5H-pyrimido[5,4-b]indol-4-yl}piperidine (CAS 107401-00-3)
Recommended Standards
- N-Methoxy-N-methyl-N-[5-oxo-2-(trifluoromethyl)-5H-chromeno[2,3-b]pyridin-3-yl]urea (CAS 303995-28-0)
- tert-Butyl 5-(4-bromophenyl)-2,5-diazabicyclo[2.2.2]octane-2-carboxylate (CAS 2097819-97-9)
- N,N-Dibenzyl-5-bromo-3-methylpyridin-2-amine (CAS 664988-32-3)
- tert-Butyl 5-bromospiro[indoline-3,4'-piperidine]-1'-carboxylate (CAS 878167-55-6)
- 2-(3,6-Dioxo-2-phenyl-1,2,3,6-tetrahydropyridazin-4-yl)acetic acid (CAS 5338-29-4)
- 2-Chloro-3-fluoro-4-(methylsulfanyl)benzoic acid (CAS 2271442-95-4)
- Ethyl 4-(3,4-diaminophenyl)piperazine-1-carboxylate (CAS 1393442-71-1)
- 3-methyl-1H-pyrazolo[4,3-b]pyridine-6-carboxylic acid (CAS 1783677-22-4)
- 4-Chloro-N-(2-((4-chloro-3-nitrophenyl)amino)-2-oxoethyl)-N-cyclohexylbenzamide (CAS 332156-36-2)
- Eltrombopag Impurity 35 (CAS 28165-50-6)
- 5-Chloro-3-methyl-1-phenylpyrazole (CAS 1131-17-5)
- 8-Chloro-2-phenyl-2H-pyrazolo[3,4-c]quinolin-4(5H)-one (CAS 204511-46-6)
- Piperidine-3-sulfonamide (CAS 1016811-80-5)
- Liraglutide Impurity 21 TFA Salt (CAS CATO-C4X-199221)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com