2-Butenedioic acid (2E)-, polymer with 1,3-isobenzofurandione and 1,2-propanediol CAS 25719-91-9
| CAS No. | 25719-91-9 |
| Molecular Formula | C8H4O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-Butenedioic acid (2E)-, polymer with 1,3-isobenzofurandione and 1,2-propanediol (C8H4O3C4H4O4C3H8O2) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Butenedioic acid (2E)-, polymer with 1,3-isobenzofurandione and 1,2-propanediol (CAS 25719-91-9), molecular formula C8H4O3C4H4O4C3H8O2 and molecular weight 340.28 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C8H4O3 C4H4O4 C3H8O2 |
| Molecular Weight | 340.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Butenedioic Standards
- (2Z)-2-Butenedioic Acid 1-Methyl Ester-d3 (CAS 1266402-66-7)
- 2-Butenedioic acid (2Z)-, polymer with ethenylbenzene, compd. with 2-amino-2-methyl-1-propanol (CAS 143348-13-4)
- 2-Butenedioic acid (2E)-, ammonium salt (CAS 14548-85-7)
- 2-Butenedioic acid (2E)-,1-butyl ester (CAS 16062-88-7)
- 2-Butenedioic acid (2E)-, 1,4-dioctyl ester, polymer with ethenyl acetate and 2-hydroxypropyl 2-methyl-2-propenoate (CAS 192230-35-6)
- 2-Butenedioic acid (2E)-, 1,4-bis(1-methylethyl) ester, polymer with ethenyl acetate and ethenylbenzene (CAS 193486-91-8)
- 2-Butenedioic acid, 2-[[4-(methoxycarbonyl)-3-thienyl]amino]-, 1,4-diethyl ester (CAS 2007931-02-2)
- 2-Butenedioic acid (2E)-, polymer with 1,3-butadiene and ethenylbenzene (CAS 24938-12-3)
Recommended Standards
- (S)-1-(4-fluoro-3-(trifluoromethyl)phenyl)-2-methoxyethan-1-amine (CAS 1270028-51-7)
- ethyl 6-fluoroimidazo[1,2-a]pyridine-2-carboxylate (CAS 367500-93-4)
- Ethyl 6-chloro-3-formyl-1H-indole-2-carboxylate (CAS 586336-88-1)
- (1-Methyl-3-phenyl-5-(p-tolyloxy)-1H-pyrazol-4-yl)methyl 4-chlorobenzoate (CAS 318247-60-8)
- 1-Chloro-7-nitro-1,2-dihydropyrrolo[1,2-a]pyrazine (CAS 1209090-23-2)
- 2-Chloro-N-(1-phenylcyclobutyl)acetamide (CAS 1308650-24-9)
- 5-(4,6-Di((1R,5S)-3-oxa-8-azabicyclo[3.2.1]octan-8-yl)-1,3,5-triazin-2-yl)-4-(difluoromethyl)pyridin-2-amine (CAS 1927857-56-4)
- Crisaborole lmpurity 79 (CAS CATO-C4X-202179)
- 1-(4-Cyclopentyl-4H-1,2,4-triazol-3-yl)ethan-1-amine (CAS 915925-07-4)
- Peptide 442 (CAS CATO-CPTD788442)
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