3-Iodo-2,5-dimethylthiophene CAS 40197-02-2
| CAS No. | 40197-02-2 |
| Molecular Formula | C6H7IS |
| Molecular Weight | 238.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-Iodo-2,5-dimethylthiophene (CAS 40197-02-2), a certified reference material (molecular formula C6H7IS, MW 238.09 g/mol) for analytical method development and quality control.
Structurally, 3-Iodo-2,5-dimethylthiophene (C6H7IS) contains sulfur-containing functionality, iodine 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 238.09 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.
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.
Physical & Chemical Properties
| Molecular Formula | C6H7IS |
| Molecular Weight | 238.09 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
Related Iodo Standards
- 3-iodo-1H,4H,5H,6H-cyclopenta[c]pyrazole (CAS 1426424-00-1)
- 4-Iodo-6,6-dimethyl-3,6-dihydro-2H-pyran (CAS 1936544-58-9)
- 1-Iodo-3,5-dimethylcyclohexane (CAS 87621-26-9)
- 2-(3-iodo-1-bicyclo[1.1.1]pentanyl)ethanol (CAS 2242693-92-9)
- 42599-17-7 1(E)-Iodo-oct-1-ene MFCD12406808 (E)-1-Iodooct-1-ene/ trans-1-Iodo-1-octene (CAS 42599-17-7)
- 2-Iodo-3-formylthiophene (CAS 18812-40-3)
- (4-Iodo-1-methyl-1H-pyrazol-5-yl)methanol (CAS 1346818-68-5)
- (4-Iodo-1-methyl-1H-pyrazol-3-yl)methanol (CAS 1401816-91-8)
Recommended Standards
- 2,2,3,3,4,4-Hexafluoropentanediamide (CAS 507-68-6)
- 4,6-Dichloro-2-(methylthio)pyrimidine-5-carbaldehyde oxime (CAS 33097-12-0)
- 2-(2-Iodoethyl)thiophene (CAS 92138-63-1)
- 4,6-Dichloro-2-(methylthio)pyrimidine-5-carboxamide (CAS 313339-36-5)
- Hexadecanoic-13,13-d2 Acid (CAS 62690-28-2)
- 5-Methanesulfonyl-1H-pyrrolo[2,3-b]pyridine (CAS 1036383-51-3)
- 2-(Thiophen-3-yl)oxirane (CAS 68277-38-3)
- 2-Bromo-5-isopropylthiazole-4-carboxylic acid (CAS 1015936-68-1)
- N-(2,5-dioxo-5,6,7,8-tetrahydro-2H-chromen-3-yl)-4-methylbenzamide (CAS 339009-35-7)
- Ganoderic Acid B (CAS 81907-61-1)
- 4-Chloro-1-methyl-3-nitro-1h-pyrazole-5-carboxylic acid (CAS 84547-88-6)
- tert-Butyl (2S,4S)-4-amino-2-(hydroxymethyl)pyrrolidine-1-carboxylate hydrochloride (CAS 1279037-14-7)
- 3-Chloro-7-isopropoxy-2H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1437434-27-9)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
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