Butanedioic acid, 2-methylene-, polymer with butyl 2-propenoate, ethenylbenzene and 2-methyl-2-propenoic acid CAS 65899-77-6
| CAS No. | 65899-77-6 |
| Molecular Formula | C5H6O4 |
| 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.
Butanedioic acid, 2-methylene-, polymer with butyl 2-propenoate, ethenylbenzene and 2-methyl-2-propenoic acid (CAS 65899-77-6), molecular formula C5H6O4C7H12O2C8H8C4H6O2 and molecular weight 448.51 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H6O4C7H12O2C8H8C4H6O2, Butanedioic acid, 2-methylene-, polymer with butyl 2-propenoate, ethenylbenzene and 2-methyl-2-propenoic acid contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 448.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C5H6O4 C7H12O2 C8H8 C4H6O2 |
| Molecular Weight | 448.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Butanedioic Standards
- Butanedioic acid, 1-[2-[(1-oxo-2-propen-1-yl)oxy]ethyl] ester, polymer with butyl 2-propenoate, ethenylbenzene and methyl 2-methyl-2-propenoate (CAS 103885-38-7)
- Butanedioic acid, 2-hydroxy-, calcium salt, hydrate (1:1:1) (CAS 1138140-78-9)
- Butanedioic acid, 1-(1,1-dimethylethyl) 4-(2,5-dioxo-1-pyrrolidinyl) ester (CAS 138833-93-9)
- Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, 1,1′-(1,4-phenylenedi-2,1-ethanediyl) 4,4′-diethyl ester (CAS 1402918-72-2)
- 144860-68-4 Butanedioic acid, 1-[(1S,2E,4E)-1-[(2R,5S,7R,8S)-2-butyl-7-[(2E,4E,6S,7S,8E)-9-carboxy-6-hydroxy-3,7-dimethyl-2,4,8-nonatrien-1-yl]-8-methyl-1,6-dioxaspiro[4.5]dec-2-yl]-5-carboxy-4-methyl-2,4-pentadien-1-yl] ester (CAS 144860-68-4)
- 144860-69-5 Butanedioic acid, 1-[(2S,3R,6S,8R,9S)-8-[(2E,4E,6S,7S,8E)-9-carboxy-6-hydroxy-3,7-dimethyl-2,4,8-nonatrien-1-yl]-2-[(1E,3E)-4-carboxy-3-methyl-1,3-butadien-1-yl]-9-methyl-3-(3-methylbutyl)-1,7-dioxaspiro[5.5]undec-3-yl] ester (CAS 144860-69-5)
- Butanedioic Acid 1-[16,16-Bis(4-methoxyphenyl)-3,3-dioxido-7-oxo-16-phenyl-6,15-dioxa-3-thia-8-azahexadec-1-yl] Ester (CAS 178261-45-5)
- Butanedioic acid, 2-sulfo-, sodium salt (CAS 20526-58-3)
Recommended Standards
- 3-(3-(Pyrrolidin-1-ylsulfonyl)phenyl)isonicotinic acid (CAS 1261923-80-1)
- Tert-butyl 3-(((2,4-dichloropyrimidin-5-yl)methyl)(methyl)amino)piperidine-1-carboxylate (CAS 1420967-79-8)
- 8-Chloro-6-methyl-2-propylquinolin-4-amine (CAS 1189107-45-6)
- 6-Bromo-1-methylquinoxalin-2(1H)-one (CAS 1379154-54-7)
- 2-(3,4-Dimethoxyphenyl)-2-(methylamino)acetamide (CAS 1218074-70-4)
- 4-(3-Chloropropyl)-1-ethyl-1h-pyrazole (CAS 1248042-36-5)
- UCM 707 (CAS 390824-20-1)
- methyl 4-(2-phenylethynyl)benzoate (CAS 42497-80-3)
- (Z)-4-oxo-4-(phenethylamino)but-2-enoicacid (CAS 4796-01-4)
- Lixisenatide (CAS 320367-13-3（free base）)
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