2-Ethyl-5-methylbenzene-1,3-diol CAS 27465-63-0
| CAS No. | 27465-63-0 |
| Molecular Formula | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Ethyl-5-methylbenzene-1,3-diol is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Ethyl-5-methylbenzene-1,3-diol (CAS 27465-63-0), a certified reference material (molecular formula C9H12O2, MW 152.19 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Ethyl-5-methylbenzene-1,3-diol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 152.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Ethyl-5-methylbenzene-1,3-diol 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 | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1964 |
Related Ethyl Standards
- 3-Methylbenzene-1,2,4,5-tetraamine (CAS 802576-41-6)
- 1-butyl-3-methylbenzene (CAS 1595-04-6)
- 1-butyl-4-methylbenzene (CAS 1595-05-7)
- 4-Methylbenzene-1,2-dicarbonitrile 4-methylphthalonitrile 63089-50-9 (CAS 63089-50-9)
- 2-Methylbenzene-1-sulfinic acid (CAS 13165-77-0)
- 5-Methylbenzene-1,3-dicarbaldehyde (CAS 1805-67-0)
- 5-Methylbenzene-1,2,3-triol (CAS 609-25-6)
- 2-Methylbenzene-1,3,5-triamine (CAS 88-02-8)
Recommended Standards
- 2-Ethyl-4,6-dimethylpyrimidin-5-ol (CAS 88070-42-2)
- 2-Hydrazinyl-1-phenylethan-1-ol (CAS 4397-11-9)
- 2-Ethyl-4,5,6,7-tetrahydrooxazolo[5,4-c]pyridine (CAS 885272-75-3)
- 2-Isocyano-1-(1-piperidyl)ethanone (CAS 67434-28-0)
- 1H-Pyrrolo[2,3-c]pyridine-3-carbaldehyde (CAS 828300-57-8)
- Tert-butyl (3-(cyanomethyl)phenyl)carbamate (CAS 954238-67-6)
- (Aminomethylene)bis(phosphonic acid) (CAS 29712-28-5)
- 6-Bromo-2,4-difluoro-3-methylbenzyl alcohol (CAS 1879026-23-9)
- Fluometuron (CAS 2164-17-2)
- 4-Pyridinecarboxylic acid, 3-ethyl- (CAS 4080-54-0)
- 5-((1-((2,6-Difluorophenyl)sulfonyl)piperidin-3-yl)methyl)-3-(pyrazin-2-yl)-1,2,4-oxadiazole (CAS 1706106-28-6)
- 3-Methyl-4-[(phenylamino)methylidene]-4,5-dihydro-1H-pyrazol-5-one (CAS 81905-05-7)
- Ethyl 2-[(2-fluorophenyl)amino]-1,3-thiazole-4-carboxylate (CAS 1366234-05-0)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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