ChemicalBook--->CAS DataBase List--->82469-79-2

82469-79-2

82469-79-2 Structure

82469-79-2 Structure
IdentificationBack Directory
[Name]

n-Butyryl tri-n-hexyl citrate
[CAS]

82469-79-2
[Synonyms]

BTHC
trihexylo-butyrylcitrate
BUTYRYL TRIHEXYL CITRATE
butyryl-n-trihexylcitrate
Tri-n-hexyl butyrylcitrate
n-Butyltri-n-hexyl citrate
Butyryl tri-n-hexyl citrate
n-Butyryl tri-n-hexyl citrate
TRIHEXYL O-BUTYRYLCITRATE 99%
Trihexyl 2-(butyryloxy)-1,2,3-propanetricarboxylate
2,3-propanetricarboxylicacid,2-(1-oxobutoxy)-trihexylester
[EINECS(EC#)]

413-890-4
[Molecular Formula]

C28H50O8
[MDL Number]

MFCD00192535
[MOL File]

82469-79-2.mol
[Molecular Weight]

514.69
Chemical PropertiesBack Directory
[Melting point ]

−55 °C(lit.)
[Boiling point ]

520.24°C (rough estimate)
[density ]

0.993
[vapor density ]

17.7 (vs air)
[vapor pressure ]

0Pa at 20-25℃
[refractive index ]

n20/D 1.448(lit.)
[Fp ]

113 °C
[storage temp. ]

2-8°C
[solubility ]

Chloroform (Sparingly), Methanol (Slightly)
[form ]

Liquid
[color ]

Colorless to Light yellow
[Cosmetics Ingredients Functions]

SKIN CONDITIONING - EMOLLIENT
PLASTICISER
[InChI]

1S/C28H50O8/c1-5-9-12-15-19-33-25(30)22-28(36-24(29)18-8-4,27(32)35-21-17-14-11-7-3)23-26(31)34-20-16-13-10-6-2/h5-23H2,1-4H3
[InChIKey]

GWVUTNGDMGTPFE-UHFFFAOYSA-N
[SMILES]

CCCCCCOC(=O)CC(CC(=O)OCCCCCC)(OC(=O)CCC)C(=O)OCCCCCC
[LogP]

4 at 21℃ and pH5.7
[EPA Substance Registry System]

1,2,3-Propanetricarboxylic acid, 2-(1-oxobutoxy)-, trihexyl ester(82469-79-2)
Safety DataBack Directory
[WGK Germany ]

WGK 3
[TSCA ]

TSCA listed
[HS Code ]

2918.15.5000
[REACH Registrations]

Active
[Storage Class]

10 - Combustible liquids
Hazard InformationBack Directory
[Uses]

Trihexyl O-Butyrylcitrate is a non-toxic plasticizer, widely used in non-toxic PVC granulation, medical products, soft children's toys, ink coatings, etc.
[Application]

Trihexyl O-Butyrylcitrate can be used as an intermediate in pharmaceutical synthesis.
[Synthesis]

Trihexyl O-Butyrylcitrate was prepared as follows: 1) To a 1 liter four-neck flask equipped with a stirrer, immersion thermometer, subsurface nitrogen sparge tube and Barrett trap with condenser 330 g n-hexanol, 180 g citric acid and 50 ml heptane. The reaction mass was heated to reflux (about 120°C) with a heating mantle and 1.5 grams of tetra-n-butyl titanate esterification catalyst was added. The reaction mass was esterified at 120-140°C until the acidity was less than 2 mgKOH/g acidity. The pressure was reduced to 20 mmHg using a vacuum pump to distill off excess n-hexanol and heptane azeotrope. The ester-containing reaction mass was then stripped with fresh steam at a temperature of 130-140° C. and full vacuum until no residual n-hexanol was detected by gas chromatography.
2) The ester-containing reaction mass was cooled to 90°C, and 0.4 g of concentrated sulfuric acid was added dropwise with stirring. n-Butyric anhydride (166 g) was added dropwise with stirring, maintaining the acylation temperature between 90-110°C. The acylation reaction mixture was stirred and allowed to proceed for 2 hours to prepare the acylated ester. response quality. By-product butyric acid was removed by vacuum distillation at 110°C.
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