1,1-Cyclohexanediacetic anhydride (1010-26-0) is also named as Timtec-BB SBB008597 ; 3-Oxa-spiro[5.5]undecane-2,4-dione ; 3,3-Pentamethyleneglutaric anhydride ; 1,1-Cyclohexanediacetic anhydride ; 1,1-Cyclohexanediacetic acid anhydride ; 1,1-Cyclohexanediacetic anhydride(CDAAN) or 3-Oxaspiro{5,5} undecane-2,4-dione ; ZINC08411625 ; FR-2308 ; CID2734289 ; I14-1483 ,and so on. 1,1-Cyclohexanediacetic anhydride (1010-26-0) is usually white to off-white crystalline powder or chunks.

IUPAC Name: 9-oxaspiro[5.5]undecane-8,10-dione
CAS: 1010-26-0
Molecular Formula: C₁₀H₁₄O₃
Molecular Weight: 182.22
Molecular structure:
Melting point:  67-70 °C(lit.)
ACD/LogD (pH 5.5): 1.16 
ACD/LogD (pH 7.4): 1.16 
ACD/BCF (pH 5.5): 4.49 
ACD/BCF (pH 7.4): 4.49 
ACD/KOC (pH 5.5): 101.9 
ACD/KOC (pH 7.4): 101.9 
H bond acceptors: 3 
H bond donors: 0 
Freely Rotating Bonds: 0 
Index of Refraction: 1.499 
Molar Refractivity: 46.24 cm³ 
Molar Volume: 157.3 cm³
Polarizability: 18.33 10^-24cm³ 
Surface Tension: 41 dyne/cm 
Density: 1.15 g/cm³ 
Flash Point: 159.8 °C 
Enthalpy of Vaporization: 57.91 kJ/mol 
Boiling Point: 336 °C at 760 mmHg 
Vapour Pressure: 0.000115 mmHg at 25°C 

 1,1-Cyclohexanediacetic anhydride (1010-26-0) is usually used as pharmaceutical intermediate.

Safety Statements  22-24/25 (22:  Do not breathe dust 24/25:  Avoid contact with skin and eyes)
WGK Germany  3

Removal in wastewater treatment of 1,1-Cyclohexanediacetic anhydride (1010-26-0) can be stated as follows:
Total removal:15.36  percent
Total biodegradation:0.19  percent
Total sludge adsorption:13.41  percent
Total to Air:1.76  percent
(using 10000 hr Bio P,A,S)