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21280-29-5

Basic Information
CAS No.: 21280-29-5
Name: decahydro-2,8,8-trimethylnaphthalene-2,4a-carbolactone
Molecular Structure:
Molecular Structure of 21280-29-5 (decahydro-2,8,8-trimethylnaphthalene-2,4a-carbolactone)
Formula: C14H22O2
Molecular Weight: 222.36
Density: 1.06g/cm3
Boiling Point: 297.6°Cat760mmHg
Flash Point: 121°C
Safety: Moderately toxic by ingestion. Low toxicity by skin contact. When heated to decomposition it emits acrid smoke and irritating vapors.
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  • 21280-29-5  CAS NO.21280-29-5

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    21280-29-5 CAS NO.21280-29-5

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  • decahydro-2,8,8-trimethylnaphthalene-2,4a-carbolactone

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  • 21280-29-5  CAS NO.21280-29-5

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    21280-29-5 CAS NO.21280-29-5

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Chemistry

 Lactoscatone with CAS NO.of 21280-29-5 is also called for 1-Hydroxy-4,7,7-trimethylbicyclo(4.4.0)decane-4-carboxylic acid lactone ; Decahydro-4-alpha-hydroxy-2,8,8-trimethyl-2-naphthoic acid, gamma-lactone ; EINECS 244-310-6 ; CID89479 ; LS-66349 ; Hexahydro-3,5,5-trimethyl-3,8a-ethano-8aH-1-benzopyran-2(3H)-one ; Hydroxy-4,7,7-trimethyl-4-carboxylic acid-lactone and so on.
Molecular Weight: 222.32
Molecular Formula: C14H22O2
ACD/LogP: 3.24 
ACD/LogD (pH 5.5): 3.24 
ACD/LogD (pH 7.4): 3.24 
ACD/BCF (pH 5.5): 171.65 
ACD/BCF (pH 7.4): 171.65 
ACD/KOC (pH 5.5): 1384.09 
ACD/KOC (pH 7.4): 1384.09 
H bond acceptors: 2 
H bond donors: 0 
Freely Rotating Bonds: 0 
Heavy Atom Count: 16
Formal Charge: 0
Complexity: 347
Isotope Atom Count: 0
Defined Atom StereoCenter Count: 0
Undefined Atom StereoCenter Count: 3
Defined Bond StereoCenter Count: 0
Undefined Bond StereoCenter Count: 0
Covalently-Bonded Unit Count: 1
Index of Refraction: 1.512 
Molar Refractivity: 62.59 cm
Molar Volume: 208.4 cm3 
Surface Tension: 37.1 dyne/cm 
Density: 1.06 g/cm
Flash Point: 121°C 
Enthalpy of Vaporization: 53.74 kJ/mol 
Boiling Point: 297.6°C at 760 mmHg 
Vapour Pressure: 0.00134 mmHg at 25°C 
The molecular structure of  Lactoscatone with CAS NO.of  21280-29-5:

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 skin > 5gm/kg (5000mg/kg)   Food and Chemical Toxicology. Vol. 30, Pg. 63S, 1992.
rat LD50 oral 1600mg/kg (1600mg/kg)   Food and Chemical Toxicology. Vol. 30, Pg. 63S, 1992.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Moderately toxic by ingestion. Low toxicity by skin contact. When heated to decomposition it emits acrid smoke and irritating vapors.

Specification

Removal in wastewater treatment of  Lactoscatone (CAS NO.21280-29-5) :
Total removal:20.86  percent
Total biodegradation:0.14  percent
Total sludge adsorption:8.32  percent
Total to air:12.41  percent
(using 10000 hr Bio P,A,S)