(3-Methylphenoxy)acetic Acid CAS 1643-15-8
| CAS No. | 1643-15-8 |
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 166.17 g/mol gives (3-Methylphenoxy)acetic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(3-Methylphenoxy)acetic Acid (CAS 1643-15-8), molecular formula C9H10O3 and molecular weight 166.17 g/mol, is a CATO reference standard with documented purity and traceability.
(3-Methylphenoxy)acetic Acid (C9H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, 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).
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.
As a certified reference material (CRM), (3-Methylphenoxy)acetic Acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Methylphenoxy Standards
- (4-methylphenoxy)acetic acid 940-64-7 InChI=1/C9H10O3/c1-7-2-4-8(5-3-7)12-6-9(10)11/h2-5H,6H2,1H3,(H,10,11 acetic acid, (4-methylphenoxy)- (CAS 940-64-7)
- (2-Methylphenoxy)acetic acid (CAS 1878-49-5)
- 3-(3-Methylphenoxy)-1-propanol (CAS 13030-21-2)
- 1-(4-Methylphenoxy)propan-2-amine (CAS 61711-87-3)
- 3-(2-Methylphenoxy)propylamine (CAS 50911-61-0)
- 3-(3-Methylphenoxy)propylamine (CAS 26646-51-5)
- 3-(4-Methylphenoxy)propylamine (CAS 50911-62-1)
- Methyl[2-(4-methylphenoxy)ethyl]amine (CAS 625437-29-8)
Recommended Standards
- p-Orcacetophenone (CAS 1634-34-0)
- Acetovanillone Sodium Salt (CAS 16522-48-8)
- 2,2-Dihydroxy-1-(p-tolyl)ethanone (CAS 16208-14-3)
- Ethyl 2,2-Difluoro-3-methyl-butyrate (CAS 165544-22-9)
- ((2R,5S)-5-(4-Amino-5-fluoro-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolan-2-yl)methyl tetrahydrogen triphosphate (CAS 145819-92-7)
- (7-Chloro-Benzo[1,3]Dioxol-5-Yl)-Methanol (CAS 179110-08-8)
- Methyl 3-amino-6-fluoropyrazine-2-carboxylate (CAS 356783-41-0)
- H-Tyr-Phe-OH (CAS 17355-11-2)
- 4-Trifluoromethyl diphenyl sulfide (CAS 53451-90-4)
- 3-(Carboxy(4-(2-morpholino-2-oxoethyl)piperazin-1-yl)methyl)-1-methyl-1H-indole-5-carboxylic acid (CAS 1214646-55-5)
- Benzo[c]thiophen-1(3H)-one (CAS 1194-57-6)
- 4-Trifluoromethylsulfanyl-piperidine-1-carboxylic acid tert-butyl ester (CAS 1206524-04-0)
- (3S,5R)-5-(Hydroxymethyl)pyrrolidin-3-ol (CAS 825644-11-9)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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