3,5-Diiodo-4-hydroxyphenylacetic Acid CAS 1948-39-6
| CAS No. | 1948-39-6 |
| Molecular Formula | C8H6I2O3 |
| Molecular Weight | 403.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,5-Diiodo-4-hydroxyphenylacetic Acid (C8H6I2O3) 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 403.94 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 3,5-Diiodo-4-hydroxyphenylacetic Acid (CAS 1948-39-6), a certified reference material (molecular formula C8H6I2O3, MW 403.94 g/mol) for analytical method development and quality control.
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 3,5-Diiodo-4-hydroxyphenylacetic Acid 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 | C8H6I2O3 |
| Molecular Weight | 403.94 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1957 |
| Halogen Content | I-containing |
Related Diiodo Standards
- 3,5-Diiodo-2-methoxybenzoic acid (CAS 19094-55-4)
- 4,5-Diiodo-1-(oxan-2-yl)pyrazole (CAS 1403483-65-7)
- 4,5-Diiodo-2-isobutylpyridazin-3(2H)-one (CAS 1706458-39-0)
- (3,5-Diiodo-2-methoxyphenyl)boronic acid (CAS 1072951-59-7)
- 2-(3,5-Diiodo-4-methoxyphenyl)ethanamine (CAS 89631-86-7)
- 3,5-Diiodo-4-pyridone-1-acetic Acid (CAS 101-29-1)
- 1,3-Diiodo-2-methoxy-5-nitrobenzene (CAS 31106-75-9)
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Recommended Standards
- 2-Hydroxy-3,5-diiodobenzohydrazide (CAS 89011-15-4)
- Methyl 2-hydroxy-3,5-diiodobenzoate (CAS 18071-50-6)
- 3-cyclopentylbenzoic acid (CAS 19920-79-7)
- 3-(2-Chlorobenzyl)-6,7-dimethoxy-2-(propylthio)quinazolin-4(3H)-imine (CAS 860610-74-8)
- Tianeptine Metabolite MC5 (Pentanoic Acid Metabolite) (CAS 104732-22-1)
- 2-[(3-methylcyclopentyl)amino]propan-1-ol (CAS 1342768-98-2)
- 6-(4-Chlorophenyl)-2-(pyridin-3-yl)pyrimidin-4-ol (CAS 2514946-77-9)
- 2'-Deoxyuridine-5'-diphosphate disodium salt (CAS 102814-06-2)
- N-(5-(N,N-Dimethylsulfamoyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)acetamide (CAS 1448071-63-3)
- 3-(propan-2-yl)furan-2-carbonitrile (CAS 1503481-35-3)
- 6-Methyl-3-(trimethylsilyl)dibenzo[c,f][1,2]thiazepin-11(6H)-one 5,5-dioxide (CAS 1809278-99-6)
- N-(3-(4-chlorophenyl)imidazo[1,2-a]pyridin-8-yl)-4-methylbenzamide (CAS 338415-11-5)
- 2-(2,2,6,6-Tetramethylmorpholino)ethanol (CAS 1597887-78-9)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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