5-(2-Hydroxyethoxy)isophthalic acid CAS 152845-29-9
| CAS No. | 152845-29-9 |
| Molecular Formula | C10H10O6 |
| Molecular Weight | 226.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 226.18 g/mol gives 5-(2-Hydroxyethoxy)isophthalic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-(2-Hydroxyethoxy)isophthalic acid (CAS 152845-29-9), molecular formula C10H10O6 and molecular weight 226.18 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H10O6, 5-(2-Hydroxyethoxy)isophthalic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 226.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C10H10O6 |
| Molecular Weight | 226.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
Related Hydroxyethoxy Standards
- Methyl 4-(2-hydroxyethoxy)-3-methoxybenzoate (CAS 21903-52-6)
- 3-(2-Hydroxyethoxy)-4-nitrobenzoic acid (CAS 1249597-20-3)
- 2-(2-(2-Hydroxyethoxy)ethyl)-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-one (CAS 1247793-53-8)
- n-[2-(2-hydroxyethoxy)ethyl]-2-(thiophen-3-yl)acetamide (CAS 1250503-83-3)
- Methyl 2-(2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)acetate (CAS 77303-63-0)
- 2-(2-(2-Hydroxyethoxy)ethoxy)ethyl butyrate (CAS 81558-07-8)
- 7-(2-Hydroxyethoxy)-4-methyl-2h-chromen-2-one (CAS 91963-63-2)
- 7-(2-Hydroxyethoxy)quinazolin-4(1H)-one (CAS 786681-82-1)
Recommended Standards
- 1-(3,4-difluorophenyl)hexahydropyrimidine-2,4-dione (CAS 1525735-16-3)
- 2,2-Difluoro-2-(3-methyl-1H-indazol-6-yl)acetic acid (CAS 1547098-94-1)
- ethyl 4,6-difluoropyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1427501-67-4)
- 2-(Difluoromethyl)-7-methoxy-4H-chromen-4-one (CAS 156909-18-1)
- 1-Palmitoyl-sn-glycero-3-phosphate sodium salt (CAS 7220-34-0)
- N-(4-Ethoxyphenyl)-N,2-dimethylquinazolin-4-amine (CAS 827031-40-3)
- Cubane-1-carboxylic acid (CAS 53578-15-7)
- Benzyl 1,7-diazaspiro[4.4]nonane-7-carboxylate (CAS 1086394-98-0)
- (2-Methyl-4-sulfamoyl-phenoxy)-acetic acid (CAS 91004-91-0)
- 2-Chloro-4,5-dimethylnicotinonitrile (CAS 125731-30-8)
- tert-Butyl ((3-hydroxycyclobutyl)methyl)carbamate (CAS 167081-41-6)
- 3-(2-Chloroethyl)quinazoline-2,4(1H,3H)-dione (CAS 5081-87-8)
- 1-(7-Methyl-2,3-dihydro-1H-pyrrolizin-5-yl)ethanone (CAS 80933-77-3)
- Semaglutide impurity 247 (CAS CATO-C4X-2226247)
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