3-Amino-2-ethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3h)-one CAS 261504-52-3
| CAS No. | 261504-52-3 |
| Molecular Formula | C12H15N3OS |
| Molecular Weight | 249.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Amino-2-ethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3h)-one (CAS 261504-52-3), a certified reference material (molecular formula C12H15N3OS, MW 249.33 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 3-Amino-2-ethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3h)-one is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 249.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 3-Amino-2-ethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3h)-one 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 | C12H15N3OS |
| Molecular Weight | 249.33 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) | 7.0 |
| 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-N-butylbenzo[d]thiazole-6-carboxamide (CAS 1071393-76-4)
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Recommended Standards
- 3,5-Dimethoxy-N-(thiophen-3-ylmethyl)aniline (CAS 864420-81-5)
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- 3,4-Dimethoxy-N-(thiophen-3-ylmethyl)aniline (CAS 864422-00-4)
- 4-((1,4-Diazepan-1-yl)sulfonyl)morpholine (CAS 756457-63-3)
- 9,10-Anthracenedione, 8-[[6-O-(2-carboxyacetyl)-β-D-glucopyranosyl]oxy]-1-hydroxy-3-methyl- (CAS 205107-13-7)
- (S)-1-(4-(tert-Butyl)phenyl)butan-1-amine hydrochloride (CAS 1263363-60-5)
- 5-Acetyl-4-(naphthalen-1-yl)pyrano[3,2-b]indol-2(5H)-one (CAS 2347639-46-5)
- 2-(1-Ethoxyethyl)-4-methyl-1,3-thiazole-5-carboxylic acid (CAS 1334146-94-9)
- 4-Amino-1-methyl-n-(1,2-oxazol-4-yl)-1h-pyrazole-3-carboxamide (CAS 1472690-97-3)
- Methyl n-(4-amino-2-fluorophenyl)carbamate (CAS 1094107-83-1)
- Ethyl 2-amino-6-fluorobenzoate hydrochloride (CAS 1432680-72-2)
- Clomiphene Citrate (CAS 50-41-9)
- 2-Acetamido-6-acetylpyridine-4-sulfonyl chloride (CAS 1393571-06-6)
- C-telopeptide (CAS 162929-64-8)
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