8-Oxaspiro[4.5]decane-7,9-dione cas no:5662-95-3
Synonyms: 1,1-Cyclopentanediaceticanhydride (7CI,8CI); 1,1-Cyclopentanediacetic acid anhydride;3,3-Tetramethyleneglutaric anhydride; NSC 78448
Name8-Oxaspiro[4.5]decane-7,9-dione
CAS5662-95-3
Synonyms1,1-Cyclopentanediaceticanhydride (7CI,8CI); 1,1-Cyclopentanediacetic acid anhydride;3,3-Tetramethyleneglutaric anhydride; NSC 78448
EINECS(EC#)227-116-6
Molecular FormulaC9H12 O3
Molecular Weight168.19
Appearancewhite glistening crystals
refractive index1.502
storage tempKeep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Hazard Xi: Irritant;
Risk R36/37/38
Safety
Safty information about 3,3-Tetramethyleneglutaric anhydride (CAS NO.5662-95-3) is:
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-24/25
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3
F: 9-21
