Methyl 3-Iodo-4-methylbenzoate CAS 90347-66-3
| CAS No. | 90347-66-3 |
| Molecular Formula | C9H9IO2 |
| Molecular Weight | 276.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 3-Iodo-4-methylbenzoate.
Methyl 3-Iodo-4-methylbenzoate (CAS 90347-66-3) is a high-purity analytical reference standard with the molecular formula C9H9IO2 and a molecular weight of 276.07 g/mol.
Structurally, Methyl 3-Iodo-4-methylbenzoate (C9H9IO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 276.07 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.
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 | C9H9IO2 |
| Molecular Weight | 276.07 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | I-containing |
Related Methyl Standards
- 4-Iodo-3-methylbenzohydrazide (CAS 1022524-08-8)
- 3-Iodo-2-methylbenzohydrazide (CAS 1023473-93-9)
- Methyl 2-Iodo-5-methylbenzoate (CAS 103440-52-4)
- Methyl 5-iodo-2-methylbenzoate (CAS 103440-54-6)
- Methyl 2-iodo-6-methylbenzoate (CAS 103440-55-7)
- Methyl 2-iodo-4-methylbenzoate (CAS 103440-56-8)
- Methyl 2-iodo-3-methylbenzoate (CAS 103441-60-7)
- 4-Iodo-3,5-dimethylbenzoic acid (CAS 1048677-11-7)
Recommended Standards
- Methyl 3-Iodo-2-methylbenzoate (CAS 52570-33-9)
- Methyl 3-iodo-5-methylbenzoate (CAS 597563-45-6)
- Methyl 2-(3-iodophenyl)acetate (CAS 502649-73-2)
- Methyl 4-Iodo-3-methylbenzoate (CAS 5471-81-8)
- Ethyl (2Z)-2-chloro-2-[2-(2-methyl-4-nitrophenyl)hydrazin-1-ylidene]acetate (CAS 1264087-49-1)
- (S)-1-(2-Aminoethyl)pyrrolidine-2-carboxamide (CAS 794461-36-2)
- 1-Iodo-4-(1,1,2-trifluoro-2-(trifluoromethoxy)ethoxy)benzene (CAS 1820736-26-2)
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