4-Chloro-6-ethyl-2-methylthieno[2,3-d]pyrimidine CAS 152998-85-1
| CAS No. | 152998-85-1 |
| Molecular Formula | C9H9ClN2S |
| Molecular Weight | 212.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-6-ethyl-2-methylthieno[2,3-d]pyrimidine (CAS 152998-85-1), a certified reference material (molecular formula C9H9ClN2S, MW 212.70 g/mol) for analytical method development and quality control.
Structurally, 4-Chloro-6-ethyl-2-methylthieno[2,3-d]pyrimidine (C9H9ClN2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. 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 212.70 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-Chloro-6-ethyl-2-methylthieno[2,3-d]pyrimidine 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 | C9H9ClN2S |
| Molecular Weight | 212.70 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-2-propylthieno[2,3-d]pyrimidine (CAS 1250679-79-8)
- 4-Chloro-2-(propan-2-yl)thieno[2,3-d]pyrimidine (CAS 1251278-87-1)
- 4-Chloro-2-ethyl-7-methylthieno[3,2-d]pyrimidine (CAS 1388056-60-7)
- 5-Chloro-1-methyl-2-(methylthio)-1H-benzo[d]imidazole (CAS 145543-38-0)
- 3-Chloro-4-methyl-3a,7a-dihydrobenzo[b]thiophene-2-carbaldehyde (CAS 84258-82-2)
- 4-Chloro-2,5,6-trimethylthieno[2,3-d]pyrimidine (CAS 83548-58-7)
- 4-Chloro-2-isopropylthieno[3,2-d]pyrimidine (CAS 443149-46-0)
- 4-Chloro-5-ethyl-6-methylthieno[2,3-d]pyrimidine (CAS 439692-90-7)
Recommended Standards
- 1-(2-Chloroethyl)-5-(thiophen-2-yl)-1H-pyrazole (CAS 1707393-48-3)
- (R)-1-(6-Chlorobenzo[d]thiazol-2-yl)ethanamine (CAS 177407-13-5)
- 1-(propan-2-yl)-1H-pyrazole-3-sulfonyl chloride (CAS 1354704-87-2)
- 1-((Chloromethyl)sulfonyl)-4-methylpiperazine (CAS 3967-02-0)
- 4-(Trifluoromethyl)-3H-spiro[benzofuran-2,4'-piperidine] hydrochloride (CAS 1956325-40-8)
- 2-Cyano-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl acetate (CAS 1292317-52-2)
- [(Adamantan-1-yl)methyl](methyl)amine hydrochloride (CAS 1773-99-5)
- Benzyl 4-oxopentanoate (CAS 6939-75-9)
- 6-Chlorospiro[4H-3,1-benzoxazine-4,4-piperidin]-2(1H)-one (CAS 92926-63-1)
- 3-(Boc-amino)-4,4-difluoropiperidine (CAS 1052713-53-7)
- (R)-Ethyl 4,4,4-trifluoro-3-hydroxybutanoate (CAS 85571-85-3)
- 5-(4-Chloro-2-methoxyphenyl)nicotinic acid (CAS 1261980-32-8)
- 2-{[(4-chlorophenyl)methyl]sulfanyl}-5-(furan-2-yl)-1,3,4-oxadiazole (CAS 119611-17-5)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
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