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Product Name: Metoxibutropate
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66332-77-2

66332-77-2 structure

66332-77-2 structure

Name: Metoxibutropate
Chemical Name: 2-methoxyphenyl 2-(4-isobutylphenyl)propionate
CAS Number: 66332-77-2
Molecular Formula: C₂₀H₂₄O₃
Molecular Weight: 312.40300
Create Date: 2018-10-11 19:13:18
Modify Date: 2025-08-25 17:11:07

Name	2-methoxyphenyl 2-(4-isobutylphenyl)propionate
Synonyms	Ibuprofen-guaiacol Methoxybutropate AF-2259 2-(4-ISOBUTYL-PHENYL)-PROPIONIC ACID 2-METHOXY-PHENYL ESTER 2-(p-Isobutylphenyl)propionic acid o-methoxyphenyl ester Flubenil metoxibutropate Ibuprofen guaiacol ester

Density	1.058g/cm3
Boiling Point	412.8ºC at 760 mmHg
Molecular Formula	C₂₀H₂₄O₃
Molecular Weight	312.40300
Flash Point	175.2ºC
Exact Mass	312.17300
PSA	35.53000
LogP	4.60280
Index of Refraction	1.536

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UF4940000

CHEMICAL NAME :: Propionic acid, 2-(p-isobutylphenyl)-, o-methoxyphenyl ester

CAS REGISTRY NUMBER :: 66332-77-2

LAST UPDATED :: 199612

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C20-H24-O3

MOLECULAR WEIGHT :: 312.44

WISWESSER LINE NOTATION :: 1Y1&1R DY1&VOR BO1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2062 mg/kg

TOXIC EFFECTS :: Behavioral - general anesthetic

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 54,332,1980

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1624 mg/kg

TOXIC EFFECTS :: Behavioral - general anesthetic

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 54,332,1980

HS Code	2916399090

HS Code	2916399090
Summary	2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

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