Products Description
The compound corresponding to CAS 2082-59-9 is Pentanoic Anhydride, with a molecular formula of C10H18O3 and a molecular weight of 186.25 g/mol. The substance is formed by the dehydration of two valeric acid molecules. It is a colorless to light yellow transparent liquid at room temperature with a pungent odor.
The melting point of Pentanoic Anhydride is - 56℃, the boiling point is 227-230℃, the density is 0.944 g/mL (20℃), the refractive index is 1.421 (20℃), and the flash point is 101℃ (closed cup). It is soluble in organic solvents such as ethanol and ether, and slowly hydrolyzes in water to form valeric acid, which is weakly acidic.
| Molecular Formula | C10H18O3 |
| Molar Mass | 186.25 |
| Density | 0.944 g/mL at 20 °C (lit.) |
| Melting Point | -56 °C (lit.) |
| Boling Point | 228-230 °C (lit.) |
| Flash Point | 214°F |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 5Pa at 25℃ |
| Appearance | Liquid |
| Color | Clear colorless to yellow |
| BRN | 1770130 |
| Storage Condition | Inert atmosphere,Room Temperature |
Uses
In the pharmaceutical field: Pentanoic Anhydride is a key raw material for butylphthalide (NBP), which is used in the treatment of ischemic stroke. Its synthesis involves the esterification reaction of valeric anhydride and phthalide. In addition, it can also participate in the preparation of antimalarial drugs, antibacterial agents and other drugs containing carboxylic acid structures.
Organic synthesis: As an acylating agent, it is used in the valerylation reaction of alcohols and amines to prepare ester or amide compounds; it can also be used to synthesize biodegradable materials, such as valeryl esterified chitosan.
About us
Gnee Chemical is a market-oriented, innovation-driven enterprise that embraces the development philosophy of "Distinctiveness, Sustainability, and Excellence." Leveraging its strong foundation in scientific and technological innovation, the company has developed over 30 specialized chemical products across six series.
The efficient scientific management team, strong product research and development strength, mature product quality control, and excellent after-sales service concept ensure the company's sustainable development and good competitiveness.
FAQ
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We accept all payment T/T, L/C, D/P.
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Usually we will arrange the shipment around 15 days.
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Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Origin certificate. If your markets have any special requirements, let us know.
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Yes , we have 100% test before delivery .
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We keep good quality and competitive price to ensure our customers benefit .
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