6-bromo-5-methyl-1H-thieno[2,3-d]pyrimidin-4-one CAS 19673-90-6
| CAS No. | 19673-90-6 |
| Molecular Formula | C7H11BrN2OS |
| Molecular Weight | 251.14 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.
CATO supplies 6-bromo-5-methyl-1H-thieno[2,3-d]pyrimidin-4-one (CAS 19673-90-6), a certified reference material (molecular formula C7H11BrN2OS, MW 251.14 g/mol) for analytical method development and quality control.
Structurally, 6-bromo-5-methyl-1H-thieno[2,3-d]pyrimidin-4-one (C7H11BrN2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 251.14 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 6-bromo-5-methyl-1H-thieno[2,3-d]pyrimidin-4-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 | C7H11BrN2OS |
| Molecular Weight | 251.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related bromo Standards
- 6-bromo-2-methyl-1H-thieno[2,3-d]pyrimidin-4-one (CAS 1159979-34-6)
- 4-bromo-6-fluoro-1,2-dimethyl-benzimidazole (CAS 1370281-45-0)
- 2-bromo-6,6-dimethyl-5H-pyrrolo[3,4-d]thiazol-4-one (CAS 2648455-24-5)
- 4-bromo-5-fluoro-naphthalen-2-ol (CAS 2621936-14-7)
- 6-bromo-4-fluoro-1,2-dimethyl-benzimidazole (CAS 2189739-26-0)
- 3-bromo-4-hydrazinyl-1-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1251925-46-8)
- (S)-2-Bromo-1-(naphthalen-2-yl)ethan-1-ol (CAS 100306-23-8)
- 3-Bromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)pyridine (CAS 1021910-58-6)
Recommended Standards
- Salbutamol Impurity 57 (CAS CATO-C4X-117657)
- 65051-00-5 7426AE C9H8Cl2O2S [(3,4-Dichlorobenzyl)thio]acetic acid (CAS 65051-00-5)
- 2-(Methylthio)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1073354-78-5)
- Methyl 2-[(2,4-Dichlorophenyl)thio]-acetate (CAS 73448-74-5)
- Methyl (R)-3-(4-bromophenyl)-2-hydroxypropanoate (CAS 2166118-09-6)
- 5,6-Dimethyl-1-propyl-1H-benzo[d]imidazol-4-amine (CAS 338423-42-0)
- (R)-2-([1,1'-Biphenyl]-4-yl)propanoic acid (CAS 10516-54-8)
- 1-(4-Fluorophenyl)-2-(2-fluoropyridin-4-yl)ethanone (CAS 302839-09-4)
- 2-Bromo-N-(thiophen-2-ylmethyl)acetamide (CAS 883526-96-3)
- Rhodium(III) acetylacetonate (CAS 14284-92-5)
- 3-(4-Methoxyphenyl)-1-(3,4,5-trifluorophenyl)propan-1-one (CAS 898776-46-0)
- N-(1,2,3,4-tetrahydroquinolin-6-yl)cyclopropanecarboxamide hydrochloride (CAS 1588876-98-5)
- Bpoc-Thr(tBu)-OSu (E-1640.0001) (CAS 62020-53-5)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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