2-Aminothieno[3,4-d]pyrimidin-4(3H)-one CAS 1333168-07-2
| CAS No. | 1333168-07-2 |
| Molecular Formula | C6H5N3OS |
| Molecular Weight | 167.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Aminothieno[3,4-d]pyrimidin-4(3H)-one (C6H5N3OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. 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 167.19 g/mol, it falls into the medium-molecular-weight range. 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 supplies 2-Aminothieno[3,4-d]pyrimidin-4(3H)-one (CAS 1333168-07-2), a certified reference material (molecular formula C6H5N3OS, MW 167.19 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Aminothieno[3,4-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.
Physical & Chemical Properties
| Molecular Formula | C6H5N3OS |
| Molecular Weight | 167.19 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.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Aminothieno Standards
- 2-Aminothieno[2,3-d]pyrimidin-4(1H)-one (CAS 1010068-13-9)
- 2-Aminothieno[3,2-d]pyrimidin-4(1H)-one (CAS 1203578-74-8)
- 7-Aminothieno[3,2-d]pyrimidin-4(3H)-one (CAS 1383531-54-1)
- 4-Aminothieno[2,3-b]pyridine-5-carbonitrile (CAS 1086397-96-7)
- 5-aminothieno[3,2-b]pyridine-6-carbonitrile (CAS 60639-44-3)
- 2-Aminothieno[2,3-d]thiazole (CAS 40507-56-0)
- 4-Aminothieno[3,2-d]pyrimidine-7-carbaldehyde (CAS 1446113-33-2)
- 4-Aminothieno[2,3-d]pyrimidine-6-carbaldehyde (CAS 655254-90-3)
Recommended Standards
- Methyl 3-(thiazol-2-yl)propiolate (CAS 1315366-12-1)
- 3-(4-Methylthiazol-5-yl)propiolic acid (CAS 1342192-21-5)
- 3-Methylisoxazolo[5,4-d]pyrimidine-4(5H)-thione (CAS 130783-68-5)
- 3-(Thiophen-2-yl)-1,2-oxazol-5-ol (CAS 1354918-21-0)
- (3-(Hydroxymethyl)-4-(trifluoromethoxy)phenyl)boronic acid (CAS 1451393-59-1)
- 3-amino-N-benzylpropanamide (CAS 64018-20-8)
- 4-Hydrazinyl-n-(1,3,4-thiadiazol-2-yl)benzene-1-sulfonamide dihydrochloride (CAS 1384428-78-7)
- 1-(5-Bromo-2-fluoro-4-hydroxyphenyl)ethan-1-one (CAS 1503357-95-6)
- Polycarbophil (CAS 9003-97-8)
- 6-Fluoro-7-methyl-2,3-dihydro-1H-inden-1-amine (CAS 1337361-68-8)
- (2-Cyclopentylthiazol-5-yl)methanamine (CAS 1251391-86-2)
- tert-butyl cis-3-acetoxy-6-hydroxy-azepane-1-carboxylate (CAS 2841449-93-0)
- N-(4-Acetamidophenyl)-2-((5-(furan-2-yl)-4-methyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 459802-64-3)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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