Heptanoic Anhydride; Enanthic Anhydride; CAS 626-27-7

• CAS No.: 626-27-7
• Formula: C14h26o3
• EINECS: 210-940-5
• Appearance: Liquid
• Type: Pharmaceutical Intermediates
• Quality: Refined
• Colour: Yellow
• Samples: Available
• Purity: 99%
• Certificates: ISO9001/SGS
• Package: 1kg/5kg/10kg/25kg
• Stocks: in Stock
• Lead Time: 5-7 Working Days
• Shelf Life: 2-3 Years
• Site Audit: Available
• Transport: Air/Express/Sea
• MOQ: 10g
• Transport Package: Drum/Bottle/Bags
• Trademark: Yunbang
• Origin: China

Product Description

HEPTANOIC ANHYDRIDE;ENANTHIC ANHYDRIDE;CAS626-27-7
 

 

HEPTANOIC ANHYDRIDE Chemical Properties

Melting point	-12 °C
Boiling point	278-282 °C
density	0.917
refractive index	1.432-1.434
Fp	110 °C
storage temp.	Inert atmosphere,Room Temperature
form	Liquid
color	Clear light yellow
CAS DataBase Reference	626-27-7(CAS DataBase Reference)
EPA Substance Registry System	Heptanoic aci d, anhydride (626-27-7)

Safety Information

Hazard Codes	C
Risk Statements	34
Safety Statements	45-36/37/39-26-28
RIDADR	1760
HazardClass	8
PackingGroup	III
HS Code	29159000

 

HEPTANOIC ANHYDRIDE Usage And Synthesis

Chemical Properties

clear light yellow liquid

Preparation

To a flask containing 15.8 gm (0.2 mole) of dry pyridin e and 25 ml of dry benzene is rapidly added with stirring 14.8 gm (0.1 mole) of heptanoyl chloride. The reaction is only slightly exothermic and then 13.0 gm (0.1 mole) of heptanoic aci d is added dropwise (5 min) causing the temperature to rise to 60-65°C. After stirring for 10 min, the solid (pyridinium hydrochloride) is quickly filtered, washed twice with 25 ml portions of dry benzene, the benzene washings concentrated under reduced pressure, and the residue distilled to afford 19-20 gm (78-83%), b.p. 155-162°C (12 mm Hg), or 170-173°C (15 min).

 

Company Informations:

Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.
The company adheres to the corporate tenet of "We do not produce medicines, but help pharmaceutical companies make good medicines".

We can provide customers with customized processing, research and development services;
We can develop high-end Pharmaceutical and chemical products with high technical difficulties,high barriers and unique production processes;
We can provide 100 grams Grade, kilograms, and hundred kilograms of raw material pharmaceutical intermediates and other products.
We can perform -100°C to 300°C reaction.

R&D strength is the company's core competitiveness.Yunbangpharm has maintains a good cooperation relationship with many Universities and Research institutes locally, which can quickly transform R&D results into industrial production.

Our goal : To achieve the integrated upgrade of Pharmaceutical intermediates, raw materials and high-end chemical products, adhere to "serving pharmaceutical companies, creating our brands" to provide customers with high-quality and low-cost pharmaceutical and chemical products, realizing Win-win cooperation and common development.