5(6)-Carboxyfluorescein Diisobutyrate CAS 287111-44-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 287111-44-8 |
| Molecular Formula | C28H24O7 C2H4O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5(6)-Carboxyfluorescein Diisobutyrate (CAS 287111-44-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C28H24O7 C2H4O2. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C28H24O7 C2H4O2 |
| Molecular Weight | 532.54 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Carboxyfluorescein Standards
- 5(6)-Carboxyfluorescein N-Hydrosuccinimide ester (CAS 117548-22-8)
- (6)-Carboxyfluorescein diacetate (CAS 124387-19-5)
- 6-Carboxyfluorescein 3,6-Diacetate N-Succinimidyl Ester (CAS 150206-15-8)
- 3348-03-6 6-Carboxyfluorescein diacetate Spiro(isobenzofuran-1(3H),9'-(9H)xanthene)-6-carboxylic acid, 3',6'-bis(acetyloxy)-3-oxo- Spiro(phthalan-1,9'-xanthene)-6-carboxylic acid, 3',6'-dihydroxy-3-oxo-, diacetate 6-Carboxy-3',6'-diacetylfluorescein 6-Cfda (CAS 3348-03-6)
- 5-Carboxyfluorescein Diacetate (CAS 79955-27-4)
- 6-Carboxyfluorescein 3,6-Dipivaloyl N-(1-Methylethyl)-2-propanamine (CAS 847569-43-1)
- 5-Carboxyfluorescein-N-hydroxysuccinimide Ester (CAS 92557-80-7)
- 6-Carboxyfluorescein N-succinimidyl ester (CAS 92557-81-8)
Recommended Standards
- N,N-diethyl-2-(4-(2-(2-fluorophenyl)-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy)ethan-1-amine 2-hydroxypropane-1,2,3-tricarboxylate(1:x) (CAS 13754-17-1)
- 3-(2,2,2-Trifluoroethoxy)-4-(trifluoromethyl)benzonitrile (CAS 871571-38-9)
- 1-(3-Chloro-4-((5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 400079-36-9)
- Benzydamine EP Impurity B HCl (CAS 2196183-71-6)
- {[3-methoxy-4-(methylsulfanyl)phenyl]methyl}(methyl)amine (CAS 1221723-62-1)
- 3-Cyclopentyl-2-formamidopropanoic acid (CAS 1340447-88-2)
- Allo-D-Ile12-Tirzepatide (CAS CATO-CPTD788963)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com