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CAS No.: 83-59-0
Name: dipropyl 6,7-methylenedioxy-1,2,3,4-tetrahydro-3-methylnaphthalene-1,2-dicarboxylate
Molecular Structure:
Molecular Structure of 83-59-0 (dipropyl 6,7-methylenedioxy-1,2,3,4-tetrahydro-3-methylnaphthalene-1,2-dicarboxylate)
Formula: C20H26 O6
Molecular Weight: 362.46
Synonyms: 5,6-Bis(propoxycarbonyl)-7-methyl-5,6,7,8-tetrahydro[2,3-d]naphtho-1,3-dioxole;5,6-Bis(propoxycarbonyl)-7-methyl-5,6,7,8-tetrahydronaphtho(2,3-d)-1,3-dioxole;Di-n-propyl3-methyl-6,7-methylenedioxy-1,2,3,4-tetrahydronaphthalene-1,2-dicarboxylate;Di-n-propyl 6,7-methylenedioxy-3-methyl-1,2,3,4-tetrahydronaphthalene-1,2-dicarboxylate;Dipropyl5,6,7,8-tetrahydro-7-methyl-naphtho(2,3)-1,3-dioxole-5,6-dicarboxylate;Dipropyl6,7-methylenedioxy-3-methyl-1,2,3,4-tetrahydronaphthalene-1,2-dicarboxylate;NSC 8402; Propilizom; Propyl isome; n-Propyl isome
Density: 1.174g/cm3
Boiling Point: 462.8°C at 760 mmHg
Flash Point: 201°C
Hazard Symbols:
Risk Codes: 22-24-50/53
Safety: Poison by skin contact. Moderately toxic by ingestion. Questionable carcinogen with experimental carcinogenic and tumorigenic data. When heated to decomposition it emits acrid smoke and irritating fumes.
PSA: 71.06000
LogP: 3.21370
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Chemistry

IUPAC Name: Dipropyl 6-methyl-5,6,7,8-tetrahydrobenzo[f][1,3]benzodioxole-
7,8-dicarboxylate
Synonyms of n-Propyl isomer (CAS NO.83-59-0) : Dipropyl 1,2,3,4-tetrahydro-3-methyl-6,7-methylenedioxynaphthalene-1,2-dicarboxylate ; Dipropyl-7-methyl-5,6,7,8-tetrahydronaphtho[2,3-d][1,3]dioxol-5,6-dicarboxylat ; Naphtho[2,3-d]-1,3-dioxole-5,6-dicarboxylic acid, 5,6,7,8-tetrahydro-7-methyl-, dipropyl ester ; Propyl isome
InChI:InChI=1/C20H26O6/c1-4-6-23-19(21)17-12(3)8-13-9-15-16(26-11-25-15)10-14(13)18(17)20(22)24-7-5-2/h9-10,12,17-18H,4-8,11H2,1-3H3  
CAS NO:83-59-0 
Molecular Formula:C20H26O6                             
Molecular Weight :362.4168                                             
Molecular Structure :
Index of Refraction: 1.523        
Surface Tension: 42 dyne/cm 
Density: 1.174 g/cm3 
Flash Point: 201 °C 
Enthalpy of Vaporization: 72.4 kJ/mol 
Boiling Point: 462.8 °C at 760 mmHg 
Vapour Pressure: 9.54E-09 mmHg at 25°C

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 skin 375mg/kg (375mg/kg)   Yakkyoku. Pharmacy. Vol. 30, Pg. 1365, 1979.
rat LD50 oral 1500mg/kg (1500mg/kg)   Guide to the Chemicals Used in Crop Protection. Vol. 6, Pg. 435, 1973.

Safety Profile

Poison by skin contact. Moderately toxic by ingestion. Questionable carcinogen with experimental carcinogenic and tumorigenic data. When n-Propyl isomer (CAS NO.83-59-0) is heated to decomposition, it emits acrid smoke and irritating fumes.

Hazard Codes ToxicT,DangerousN
Risk Statements 22-24-50/53
R22:Harmful if swallowed. 
R24: N-Propyl isomer (CAS NO.83-59-0) is toxic in contact with skin. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements 36/37-45-60-61
S36/37:Wear suitable protective clothing and gloves. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR 2810
HazardClass 6.1(b)
PackingGroup III