Disodium terephthalate CAS 10028-70-3
| CAS No. | 10028-70-3 |
| Molecular Formula | C8H4O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Disodium terephthalate (CAS 10028-70-3), a certified reference material (molecular formula C8H4O4Na, MW 187.11 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H4O4Na, Disodium terephthalate 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 187.11 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.
Physical & Chemical Properties
| Molecular Formula | C8H4O4 2*Na |
| Molecular Weight | 187.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related Disodium Standards
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- DIsodium phenyl phosphate hydrate (CAS 1260375-37-8)
- Disodium 4-cyanoisothiazole-3,5-dithiolate (CAS 1314229-65-6)
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- Disodium glycerophosphate (CAS 1334-74-3)
Recommended Standards
- 6-Fluoro-1,2,3,4-tetrahydro-naphthalen-2-ylamine hydrochloride (CAS 852660-54-9)
- 898785-81-4 Methyl 2-(2-methoxypyridine-3-carbonyl)benzoate DTXSID90642155 (CAS 898785-81-4)
- Ti In Water (CAS CATO-CCRM106098)
- 6-(2-Fluorophenyl)imidazo[2,1-b]thiazol-5-amine (CAS 1432678-84-6)
- 5-((2-Methoxyethyl)(thiophen-3-ylmethyl)amino)-5-oxo-3-(thiophen-2-yl)pentanoic acid (CAS 1448132-89-5)
- Azetidin-1-yl(furan-2-yl)methanone (CAS 51425-93-5)
- 7-BENZYL-1H-PURINE-2,6(3H,7H)-DIONE (CAS 56160-64-6)
- 4-ethynyl-3-fluoropyridine (CAS 1196156-81-6)
- 7-Chloro-5-methyl-1H-pyrazolo[4,3-b]pyridin-3-amine (CAS 113140-14-0)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
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