5662-95-3

Basic information

• Product Name: 3,3-Tetramethyleneglutaric anhydride
• Synonyms: 3,3-TETRAMETHYLENEGLUTARIC ANHYDRIDE;1,1-CYCLOPENTANEDIACETIC ACID ANHYDRIDE;1,1-CYCLOPENTANEDIACETIC ANHYDRIDE;8-OXASPIRO[4.5]-7,9-DECANEDIONE;8-OXASPIRO[4.5]DECANE-7,9-DIONE;Cyclopentane-1,1-diacetic anhydride;beta,beta-Tetramethyleneglutaric anhydride;3,3-TETRAMETHYLENEGLUTARIC ANHYDRIDE, 98 %
• CAS NO: 5662-95-3
• Molecular Formula: C₉H₁₂O₃
• Molecular Weight: 168.19
• EINECS: 227-116-6
• Mol File: 5662-95-3.mol
• Article Data: 4

Chemical Properties

• Melting Point: 64-66 °C(lit.)
• Boiling Point: 186 °C15 mm Hg(lit.)
• Flash Point: 154.5 °C
• Appearance: white glistening crystals
• Density: 1.1322 (rough estimate)
• Vapor Pressure: 0.000277mmHg at 25°C
• Refractive Index: 1.5330 (estimate)
• Storage Temp.: Inert atmosphere,Room Temperature
• Water Solubility: decomposes
• BRN: 383703
• CAS DataBase Reference: 3,3-Tetramethyleneglutaric anhydride(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3-Tetramethyleneglutaric anhydride(5662-95-3)
• EPA Substance Registry System: 3,3-Tetramethyleneglutaric anhydride(5662-95-3)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-24/25
• WGK Germany: 3
• F: 9-21
• Hazardous Substances Data: 5662-95-3(Hazardous Substances Data)

Usage

Chemical Properties

white glistening crystals

Uses

1,1-Cyclopentanediacetic Anhydride is used to prepare betulin carboxyalkanoate derivatives as anti-HIV agents.

InChI:InChI=1/C9H12O3/c10-7-5-9(3-1-2-4-9)6-8(11)12-7/h1-6H2

Upstream product

• 42940-56-7 7,9-dioxo-8-azaspiro[4.5]decane-6,10-dicarbonitrile 
• 861616-96-8 cyclopentylidenedi-malonic acid 
• 861342-71-4 [1-(carbamoyl-carboxy-methyl)-cyclopentyl]-malonic acid 
• 16713-66-9 1,1-cyclopentanediacetic acid 

Downstream Products

• 77261-42-8 8-p-Tolyl-8-aza-spiro[4.5]decane-7,9-dione 
• 77261-44-0 8-(4-Chloro-phenyl)-8-aza-spiro[4.5]decane-7,9-dione 
• 77261-47-3 4-(7,9-Dioxo-8-aza-spiro[4.5]dec-8-yl)-benzoic acid 
• 77261-46-2 2-(7,9-Dioxo-8-aza-spiro[4.5]dec-8-yl)-benzoic acid 
• 403481-48-1 5-(4-methoxyphenyl)-5-oxo-3,3-tetramethylenepentanoic acid 
• 77274-96-5 8-(4-Nitro-phenyl)-8-aza-spiro[4.5]decane-7,9-dione 
• 77261-48-4 1-(7,9-Dioxo-8-aza-spiro[4.5]dec-8-yl)-3-phenyl-urea 
• 77261-67-7 8-Phenyl-8-aza-spiro[4.5]decane 
• 77261-39-3 8-Phenyl-8-aza-spiro[4.5]decane-7,9-dione 
• 77261-43-9 8-(3-Chloro-phenyl)-8-aza-spiro[4.5]decane-7,9-dione 
• 77261-41-7 8-m-Tolyl-8-aza-spiro[4.5]decane-7,9-dione 
• 77274-95-4 8-(3-Nitro-phenyl)-8-aza-spiro[4.5]decane-7,9-dione 
• 77261-40-6 8-o-Tolyl-8-aza-spiro[4.5]decane-7,9-dione 
• 77261-38-2 8-benzyl-8-azaspiro[4.5]decane-7,9-dione 

Relevant articles and documents

VITRIFIED STATE STABILIZING AGENT FOR ANIMAL CELL CRYOPRESERVATION SOLUTION

Provided are a vitrification stabilizer for animal cell cryopreservation fluid, and an animal cell cryopreservation fluid that exhibits superior vitrification capacity due to containing said vitrification stabilizer for animal cell cryopreservation fluid. The vitrification stabilizer for animal cell cryopreservation fluid contains an amphoteric polymer compound selected from the group consisting of: (a) an amphoteric polymer compound obtained by reacting ?-poly-L-lysine with butyl succinic acid anhydride and performing carboxylation; (b) an amphoteric polymer compound obtained by reacting ?-poly-L-lysine with butyl succinic acid anhydride and succinic acid anhydride, and performing carboxylation; and (c) an amphoteric polymer compound obtained by reacting ?-poly-L-lysine with a compound represented by formula (I) and performing carboxylation.

Bronsted base-assisted boronic acid catalysis for the dehydrative intramolecular condensation of dicarboxylic acids

Bronsted base-assisted boronic acid catalysis for the dehydrative self-condensation of carboxylic acids is described. Arylboronic acid bearing bulky (N,N-dialkylamino)methyl groups at the 2,6-positions can catalyze the intramolecular dehydrative condensation of di-and tetracarboxylic acids. This is the first successful method for the catalytic dehydrative self-condensation of carboxylic acids.(Figure Presented)