3-Iodo-1,2,4,5-tetramethylbenzene CAS 2100-25-6
| CAS No. | 2100-25-6 |
| Molecular Formula | C10H13I |
| Molecular Weight | 260.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Iodo-1,2,4,5-tetramethylbenzene (CAS 2100-25-6), molecular formula C10H13I and molecular weight 260.11 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Iodo-1,2,4,5-tetramethylbenzene (C10H13I) contains iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 260.11 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).
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 | C10H13I |
| Molecular Weight | 260.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | I-containing |
Related Iodo Standards
- 1-Iodo-2,3,4,5-tetramethylbenzene (CAS 54509-71-6)
- 1-Iodo-4-isobutylbenzene (CAS 85609-09-2)
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- 4-iodo-1λ⁶-thiane-1,1-dione (CAS 858822-85-2)
- 2-Iodo-4,5-dimethylbenzaldehyde (CAS 1094026-85-3)
- 6-Iodo-1,2,3,4-tetrahydro-1,8-naphthyridine (CAS 1267856-18-7)
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