Acetrizoic Acid CAS 85-36-9
| CAS No. | 85-36-9 |
| Molecular Formula | C9H6I3NO3 |
| Molecular Weight | 556.86 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.
Acetrizoic Acid (CAS 85-36-9), molecular formula C9H6I3NO3 and molecular weight 556.86 g/mol, is a CATO reference standard with documented purity and traceability.
Acetrizoic Acid (C9H6I3NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, iodine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures Acetrizoic 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 | C9H6I3NO3 |
| Molecular Weight | 556.86 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (E)-Methyl 3-(2-chloro-4-((3-(2,6-dichlorophenyl)-5-isopropylisoxazol-4-yl)methoxy)styryl)benzoate (CAS 933799-50-9)
- 5-Amino-2,4,6-triiodoisophthalamide (CAS 99139-38-5)
- BTO8-2Th (CAS 1192352-09-2)
- N,N'-(ethane-1,2-diyl)bis(3,5-di-tert-butyl-4-hydroxybenzothioamide) (CAS 300679-53-2)
- 3-(2-Bromobenzyl)azetidine (CAS 1016772-34-1)
- 2,3-dichloro-5-methylaniline (CAS 13711-29-0)
- (s)-2-Amino-2-(3-bromo-4-methylphenyl)ethan-1-ol (CAS 1213643-89-0)
- 3-(1H-Benzimidazol-2-yl)aniline (CAS 7596-74-9)
- Ethyl 2-(2-chloroacetamido)thiazole-4-carboxylate (CAS 19745-93-8)
- 2-(2-Methylenebutyl)cycloheptan-1-ol (CAS 1465737-86-3)
- 2-(4,5-Diamino-1H-pyrazol-1-yl)ethanol (CAS 155601-17-5)
- 4-(Azetidin-3-ylmethoxy)-1,6-dimethylpyridin-2(1H)-one (CAS 1706448-07-8)
- Phenylarsonic Acid (CAS 98-05-5)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com