3-amino-2-ethylthieno[2,3-d]pyrimidin-4(3H)-one CAS 307342-26-3
| CAS No. | 307342-26-3 |
| Molecular Formula | C8H9N3OS |
| Molecular Weight | 195.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-amino-2-ethylthieno[2,3-d]pyrimidin-4(3H)-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.
3-amino-2-ethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 307342-26-3) is a high-purity analytical reference standard with the molecular formula C8H9N3OS and a molecular weight of 195.24 g/mol.
Structurally, 3-amino-2-ethylthieno[2,3-d]pyrimidin-4(3H)-one (C8H9N3OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 195.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H9N3OS |
| Molecular Weight | 195.24 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related amino Standards
- 2-Amino-4-(ethylsulfonyl)butanoic acid (CAS 103364-66-5)
- 4-Amino-6-(1H-pyrrol-2-yl)-1,6-dihydro-1,3,5-triazine-2-thiol (CAS 1142208-43-2)
- 2-Amino-5-(methylsulfonyl)pentanoic acid (CAS 1342595-25-8)
- 3-Amino-6-methylbenzo[b]thiophene 1,1-dioxide (CAS 1421603-50-0)
- (S)-2-Amino-4-(ethylsulfonyl)butanoic acid (CAS 63596-32-7)
- 2-Amino-5,6-dimethyl-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 74195-48-5)
- 3-Amino-2,6-dimethylthieno[2,3-d]pyrimidin-4(3h)-one (CAS 79927-76-7)
- 3-Amino-6-ethyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 568551-23-5)
Recommended Standards
- 3,4-Dimethoxyphenyl isothiocyanate (CAS 33904-04-0)
- 3-Ethylbenzo[d]isothiazole 1,1-dioxide (CAS 61798-56-9)
- 3,4-Dihydro-2H-benzo[b][1,4]thiazine-6-carboxylic acid (CAS 226259-31-0)
- 3-Fluoro-4-91-piperazinyl)benzeneamine (CAS 212694-67-2)
- Dimethyl 2,2,3,3,4,4-hexafluoropentanedioate (CAS 1513-62-8)
- Fmoc-5-bromo-DL-tryptophan (CAS 925939-82-8)
- 2-(4-methoxy-3-methylphenyl)pyrrolidine (CAS 887361-09-3)
- 1-(4-Methoxybenzyl)piperazine Dihydrochloride (CAS 21868-01-9)
- 1020056-35-2 7546AC C15H14Cl2N2O2 N-(3-Amino-2-methylphenyl)-2-(2,4-dichlorophenoxy) acetamide (CAS 1020056-35-2)
- 5-((6-((Pyridin-4-ylmethyl)amino)pyrimidin-4-yl)amino)pyrazine-2-carbonitrile (CAS 1137475-35-4)
- 5-(Hydroxymethyl)bicyclo[3.2.2]Nonane-1-carbonitrile (CAS 2091895-14-4)
- 5-Iodo-4-methoxypyrimidine (CAS 219915-13-6)
- 3-((3,4-Dimethoxyphenyl)difluoromethyl)bicyclo[1.1.1]Pentane-1-carbonitrile (CAS 2199982-82-4)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com