6,6-Dimethyl-5,8-dihydro-6H-pyrano[4',3':4,5]thieno[2,3-d]pyrimidin-4-amine CAS 65413-58-3
| CAS No. | 65413-58-3 |
| Molecular Formula | C11H13N3OS |
| Molecular Weight | 235.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6,6-Dimethyl-5,8-dihydro-6H-pyrano[4',3':4,5]thieno[2,3-d]pyrimidin-4-amine (CAS 65413-58-3) is a high-purity analytical reference standard with the molecular formula C11H13N3OS and a molecular weight of 235.31 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 6,6-Dimethyl-5,8-dihydro-6H-pyrano[4',3':4,5]thieno[2,3-d]pyrimidin-4-amine is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 235.31 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).
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 | C11H13N3OS |
| Molecular Weight | 235.31 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.) | 1975 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- 2-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophene-3-carbohydrazide (CAS 678139-53-2)
- 3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophene-2-carbohydrazide (CAS 666724-62-5)
- 1,4-Dimethyl-9-(prop-2-en-1-yl)-9H-carbazole (CAS 120105-82-0)
- 3-(((2,2-Dimethyl-2,3-dihydrobenzofuran-5-yl)methyl)amino)propan-1-ol (CAS 1275949-66-0)
- (R)-7,7-Dimethyl-6-oxo-1,2,5-dithiazocane-4-carboxylic acid (CAS 128620-82-6)
- 7,7-Dimethyl-2-(methylsulfonyl)-6,8-dioxa-2-azaspiro[3.5]nonane (CAS 1396684-99-3)
- Methyl 3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophene-2-carboxylate (CAS 175137-41-4)
- (S)-Dimethyl 2-aminosuccinate (CAS 6384-18-5)
Recommended Standards
- 5-Ethyl-N-(4-methoxyphenyl)-1,3,4-thiadiazol-2-amine (CAS 61955-52-0)
- 6-Amino-9-cyclopentyl-1H-purine-2(9H)-thione (CAS 35966-96-2)
- 5-(Piperidin-4-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole (CAS 244272-35-3)
- 6-Cyclohexyl-4-oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 290313-19-8)
- 5-((2-Chloro-5-nitrophenoxy)methyl)furan-2-carbohydrazide (CAS 832739-50-1)
- 4-Bromobenzo[b]thiophene-5-carbaldehyde (CAS 131124-29-3)
- 4-(4-Amino-1H-imidazol-2-yl)butanoic acid (CAS 933705-03-4)
- tert-Butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)piperidine-1-carboxylate (CAS 1884388-16-2)
- 1-[(3,4-Dichlorophenyl)methyl]-3-[(4-fluorophenyl)methoxy]-2-methyl-1,4-dihydropyridin-4-one (CAS 338965-61-0)
- 5,6,7,8-Tetrahydro-3-phenyl-1,2,4-triazolo[4,3-a]pyrazine (CAS 944906-91-6)
- 3-(3-Nitrophenyl)propanal (CAS 198783-53-8)
- 2-(4-((2-((4-Hydroxyphenyl)(methyl)amino)-4-oxothiazol-5(4H)-ylidene)methyl)phenoxy)acetic acid (CAS 501108-10-7)
- 7-Bromo-1-benzothiophene-3-sulfonyl chloride (CAS 1421601-28-6)
- Semaglutide Impurity 149 (CAS CATO-C4X-2226149)
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