Methyl 4-methyl-5-[4-(propan-2-yl)phenyl]thiophene-2-carboxylate CAS 1855889-97-2
| CAS No. | 1855889-97-2 |
| Molecular Formula | C16H18O2S |
| Molecular Weight | 274.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 4-methyl-5-[4-(propan-2-yl)phenyl]thiophene-2-carboxylate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Methyl 4-methyl-5-[4-(propan-2-yl)phenyl]thiophene-2-carboxylate (CAS 1855889-97-2), a certified reference material (molecular formula C16H18O2S, MW 274.38 g/mol) for analytical method development and quality control.
Structurally, Methyl 4-methyl-5-[4-(propan-2-yl)phenyl]thiophene-2-carboxylate (C16H18O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 274.38 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C16H18O2S |
| Molecular Weight | 274.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Sulfur Atoms | 1 |
Recommended Standards
- (2S,4S)-tert-Butyl 2-(dimethylcarbamoyl)-4-mercaptopyrrolidine-1-carboxylate (CAS 177615-44-0)
- (5-Methoxy-1H-indol-3-yl)(piperidin-1-yl)methanethione (CAS 937604-38-1)
- (Z)-N-(3-Allyl-4-methylbenzo[d]thiazol-2(3H)-ylidene)isobutyramide (CAS 1321947-39-0)
- (S)-2-(Benzo[b]thiophen-3-yl)-N-(pyrrolidin-2-ylmethyl)acetamide (CAS 828928-52-5)
- 2-(3-(4-Methoxyphenyl)-1H-pyrazol-1-yl)acetic acid (CAS 959584-25-9)
- 4-Bromo-2-iodobenzo[d]oxazole (CAS 1804084-69-2)
- 3-(2-Hydroxyphenyl)-1H-pyrazole-5-carboxylic acid (CAS 46393-99-1)
- 4,5,5-Trimethylhexanoic acid (CAS 94349-37-8)
- 2-Chloro-5-(methylthio)-3-(trifluoromethyl)pyridine (CAS 1820650-15-4)
- Methyl 8-bromo-1-(2-methylpropyl)-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate (CAS 497224-04-1)
- ((1s,4s)-4-(methyl(7-tosyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)cyclohexyl)methanethiol (CAS CATO-C4X-301834)
- 326495-32-3 (2R)-2,3-Bis[(~2~H_27_)tetradecanoyloxy]propyl 2-{tris[(~2~H_3_)methyl]azaniumyl}(~2~H_4_)ethyl phosphate DTXSID20677031 (CAS 326495-32-3)
- 7,7-Dimethyl-5,9-dioxaspiro[3.5]Nonane (CAS 28898-51-3)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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