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Cas Database

Name	Dioctyl phthalate	EINECS	204-214-7
CAS No.	117-84-0	Density	0.985 g/cm³
PSA	52.60000	LogP	6.72120
Solubility	0.02 mg/L at 25 ℃	Melting Point	-25 °C
Formula	C₂₄H₃₈O₄	Boiling Point	416.4 °C at 760 mmHg
Molecular Weight	390.563	Flash Point	222.3 °C
Transport Information	UN 3082	Appearance	clear liquid with a mild odor
Safety	23-24/25	Risk Codes	60-61
Molecular Structure		Hazard Symbols	Xi
Synonyms	1,2-Benzenedicarboxylicacid, dioctyl ester (9CI);Phthalic acid, dioctyl ester (6CI,8CI);Bis(n-octyl)phthalate;DNOP;Di-n-octyl phthalate;Dicapryl phthalate;Dinopol NOP;Dioctylo-phthalate;Monocizer W 555;NSC 15318;Octyl phthalate;Phthalic acid dioctylester;Vinycizer 85;n-Octyl phthalate;Di-n-octyl o-phthalate;1,2-Benzenedicarboxylicacid, 1,2-dioctyl ester;n-Dioctyl phthalate;	Article Data	35

Dioctyl phthalate Synthetic route

: 85-44-9
phthalic anhydride

: 111-87-5
octanol

: 117-84-0
Di-n-octyl phthalate

Conditions

Conditions	Yield
zirconium(IV) oxide at 200℃; for 2h; in autoclave;	99%
With Solid superacid catalyst at 200℃; under 375.038 - 4500.45 Torr; Temperature; Reagent/catalyst; Concentration;	98%
With sulfonated graphene In toluene at 112℃; for 6h;	95%

: 111-87-5
octanol

: 643-79-8
o-phthalic dicarboxaldehyde

: 117-84-0
Di-n-octyl phthalate

Conditions

Conditions	Yield
With tert.-butylhydroperoxide In decane at 25℃; for 6h; Inert atmosphere;	96%
With tert.-butylhydroperoxide In decane; acetonitrile at 25℃; for 6h;	96%

: 85-44-9
phthalic anhydride

: 111-87-5
octanol

A: 117-84-0
Di-n-octyl phthalate

B: 5393-19-1
Mono-n-octyl phthalate

Conditions

Conditions	Yield
With montmorillonite K-10 In tetrachloromethane at 76℃; for 12h;	A 21% B 54%

: 111-87-5
octanol

: 84-66-2
Diethyl phthalate

: 117-84-0
Di-n-octyl phthalate

Conditions

Conditions	Yield
With sodium

: 111-87-5
octanol

: 88-99-3
benzene-1,2-dicarboxylic acid

: 117-84-0
Di-n-octyl phthalate

Conditions

Conditions	Yield
With toluene-4-sulfonic acid; xylene
With sulfated zirconia In neat (no solvent) at 160℃; for 6h; Kinetics; Reagent/catalyst; Temperature; Dean-Stark;

: 111-83-1
1-bromo-octane

: 88-99-3
benzene-1,2-dicarboxylic acid

: 117-84-0
Di-n-octyl phthalate

Conditions

Conditions	Yield
With potassium hydroxide; tetrabutylammomium bromide 1.) 60 deg C, 0.1 Torr, 6 h, 2.) 85 deg C, 16 h; Yield given. Multistep reaction;

: 111-87-5
octanol

phthalic acid-anhydride(?): phthalic acid-anhydride(?)

: 117-84-0
Di-n-octyl phthalate

Conditions

Conditions	Yield
With toluene-4-sulfonic acid; xylene

N-dimethylamine: N-dimethylamine

: octyl sodium phthalate

: 111-83-1
1-bromo-octane

: 88-99-3
benzene-1,2-dicarboxylic acid

: 117-84-0
Di-n-octyl phthalate

Conditions

Conditions	Yield
With sodium hydroxide

: 142-82-5
n-heptane

A: 129-00-0
pyrene

B: 91-20-3
naphthalene

C: 92-52-4
biphenyl

D: 612-94-2
2-phenylnaphthalene

E: 85-01-8
phenanthrene

F: 120-12-7
anthracene

G: 206-44-0
fluoranthene

H: 117-84-0
Di-n-octyl phthalate

I: 83-32-9
acenaphthene

J: 208-96-8
acenaphthylene

Conditions

Conditions	Yield
Mechanism; Microwave irradiation;

...Expand

: 117-84-0
Di-n-octyl phthalate

: 84-71-9
Bis(2-ethylhexyl) cyclohexane-1,2-dicarboxylate

Conditions

Conditions	Yield
With hydrogen In hexane at 150℃; under 37503.8 Torr; for 1h; Reagent/catalyst; Autoclave;	98%

Dioctyl phthalate Chemical Properties

IUPAC Name: Dioctyl benzene-1,2-dicarboxylate
Molecular Formula: C₂₄H₃₈O₄
Molecular Weight: 390.56 g/mol
EINECS: 204-214-7
Classification Code: Reproductive Effect; Skin / Eye Irritant
Index of Refraction: 1.49
Molar Refractivity: 114.65 cm³
Molar Volume: 396.3 cm³
Surface Tension: 36.4 dyne/cm
Density: 0.985 g/cm³
Flash Point: 222.3 °C
Enthalpy of Vaporization: 66.96 kJ/mol
Boiling Point: 416.4 °C at 760 mmHg
Vapour Pressure of n-Dioctyl phthalate (CAS NO.117-84-0): 3.84E-07 mmHg at 25 °C

Dioctyl phthalate Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
guinea pig	LD50	skin	> 5gm/kg (5000mg/kg)	"Industrial Hygiene and Toxicology," 2nd ed., Patty, F.A., ed., New York, John Wiley & Sons, Inc., 1958-63Vol. 2, Pg. 1906, 1963.
mouse	LD50	intraperitoneal	65gm/kg (65000mg/kg)	Journal of the Society of Cosmetic Chemists. Vol. 28, Pg. 667, 1977.
mouse	LD50	oral	6513mg/kg (6513mg/kg)	Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 17(11), Pg. 51, 1973.
rat	LD50	intraperitoneal	> 50mL/kg (50mL/kg)	Journal of Pharmaceutical Sciences. Vol. 61, Pg. 51, 1972.
rat	LD50	oral	47gm/kg (47000mg/kg)	Farmakologiya i Toksikologiya Vol. 39, Pg. 635, 1976.

Dioctyl phthalate Consensus Reports

n-Dioctyl phthalate's reported in EPA TSCA Inventory.

Dioctyl phthalate Safety Profile

Mildly toxic by ingestion. Experimental teratogenic and reproductive effects. A skin and severe eye irritant. Used as a plasticizer. When heated to decomposition it emits acrid smoke and irritating fumes.
Risk Statements: 60-61
R60:May impair fertility.
R61:May cause harm to the unborn child.
Safety Statements: 23-24/25
S23:Do not breathe vapour.
S24/25:Avoid contact with skin and eyes.
RIDADR: 2810
WGK Germany: 2
RTECS: TI1925000

Dioctyl phthalate Specification

n-Dioctyl phthalate (CAS NO.117-84-0), its Synonyms are 1,2-Benzenedicarbonic acid, dioctyl ester ; 1,2-Benzenedicarboxylic acid, dioctyl ester ; Benzenedicarboxylic acid di-n-octyl ester ; Di-n-octyl phthalate ; Dicapryl phthalate ; Dinopol NOP ; Dioctyl 1,2-benzenedicarboxylate ; Dioctyl o-benzenedicarboxylate ; Dioctyl phthalate ; Dioktylester kyseliny ftalove ; n-Octyl phthalate ; o-Benzenedicarboxylic acid, dioctyl ester . It is clear liquid with a mild odor.

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