2-Ethylpyrido[3,4-d]pyrimidin-4(1H)-one CAS 161333-96-6
| CAS No. | 161333-96-6 |
| Molecular Formula | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Ethylpyrido[3,4-d]pyrimidin-4(1H)-one 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.
CATO supplies 2-Ethylpyrido[3,4-d]pyrimidin-4(1H)-one (CAS 161333-96-6), a certified reference material (molecular formula C9H9N3O, MW 175.19 g/mol) for analytical method development and quality control.
Structurally, 2-Ethylpyrido[3,4-d]pyrimidin-4(1H)-one (C9H9N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 175.19 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 3 |
Related Ethylpyrido Standards
Recommended Standards
- 7-Amino-2-methylquinazolin-4(3H)-one (CAS 16081-78-0)
- (3E)-1-Methyl-1H-indole-2,3-dione 3-hydrazone (CAS 1613616-40-2)
- 6-Amino-3-methyl-3,4-dihydroquinazolin-4-one (CAS 16064-23-6)
- n-Methyl-3-phenyl-1,2,4-oxadiazol-5-amine (CAS 16219-33-3)
- 3,5-Diiodo-D-thyronine (CAS 5563-89-3)
- 2-(1,1-Difluoroethyl)pyridine (CAS 114468-02-9)
- N-methyltetrahydro-2H-thiopyran-4-amine hydrochloride (CAS 1188964-82-0)
- Cefazolin Impurity 32 (CAS CATO-C4X-157732)
- 1,3,5-Trimethoxy-10-methylacridin-9(10H)-one (CAS 52911-52-1)
- 3-(2-Methoxyphenyl)-1-phenyl-1H-pyrazol-5-amine (CAS 926208-66-4)
- H-DL-Phe(4-Cl)-OMe.HCl (CAS 28968-64-1)
- (R)-2-(2-Iodophenoxy)propanoic acid (CAS 10057-04-2)
- 2-(Difluoromethyl)-3-methyl-4-nitropyridine-5-carboxylic acid (CAS 1805442-42-5)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
Why CATO?
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