1587-21-9

Basic information

• Product Name: CITRIC ACID TRI-N-PROPYL ESTER
• Synonyms: TRI-N-PROPYL CITRATE;CITRIC ACID TRI-N-PROPYL ESTER;tripropyl citrate;Citric Acid Tripropyl Ester;2-Hydroxy-1,2,3-propanetricarboxylic acid tripropyl ester;2-hydroxypropane-1,2,3-tricarboxylic acid tripropyl ester;tripropyl 2-hydroxypropane-1,2,3-tricarboxylate
• CAS NO: 1587-21-9
• Molecular Formula: C₁₅H₂₆O₇
• Molecular Weight: 318.36
• EINECS: 216-450-8
• Product Categories: Functional Materials;Hydroxycarboxylic Acid Esters (Plasticizer);Plasticizer
• Mol File: 1587-21-9.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 198 °C / 13mmHg
• Flash Point: 109oC
• Appearance: /
• Density: 1,08 g/cm3
• Vapor Pressure: 4.36E-06mmHg at 25°C
• Refractive Index: 1.4420-1.4450
• PKA: 11.30±0.29(Predicted)
• CAS DataBase Reference: CITRIC ACID TRI-N-PROPYL ESTER(CAS DataBase Reference)
• NIST Chemistry Reference: CITRIC ACID TRI-N-PROPYL ESTER(1587-21-9)
• EPA Substance Registry System: CITRIC ACID TRI-N-PROPYL ESTER(1587-21-9)

Safety Data

• Hazardous Substances Data: 1587-21-9(Hazardous Substances Data)

Usage

General Description

CITRIC ACID TRI-N-PROPYL ESTER is a compound formed from the esterification of citric acid with three molecules of n-propyl alcohol. It is used as a plasticizer in the production of polyvinyl chloride (PVC) and other polymers, improving their flexibility, durability, and resistance to heat and chemicals. Additionally, it is employed as a flavoring agent and food additive in the production of beverages, confectionery, and pharmaceuticals. CITRIC ACID TRI-N-PROPYL ESTER is also utilized in the cosmetics industry as an emollient and skin conditioning agent in personal care products. However, it is important to note that this compound should be used with caution and in compliance with safety regulations due to its potential hazards and risks associated with its handling and exposure.

InChI:InChI=1/C15H26O7/c1-4-7-20-12(16)10-15(19,14(18)22-9-6-3)11-13(17)21-8-5-2/h19H,4-11H2,1-3H3

Upstream product

• 71-23-8 propan-1-ol 
• 77-92-9 citric acid 

Downstream Products

• 6293-73-8 2-acetoxy-propane-1,2,3-tricarboxylic acid tripropyl ester 
• 10061-74-2 propene-1c,2,3-tricarboxylic acid tripropyl ester 

Relevant articles and documents

Robust acidic pseudo-ionic liquid catalyst with self-separation ability for esterification and acetalization

The novel acidic pseudo-ionic liquid catalyst with self-separation ability has been synthesized through the quaternization of triphenylphosphine and the acidification with silicotungstic acid. The pseudo-IL showed high activities for the esterification with average conversions over 90%. The pseudo-IL showed even higher activities for acetalization than traditional sulfuric acid. The homogeneous catalytic process benefited the mass transfer efficiency. The pseudo-IL separated from the reaction mixture automatically after reactions, which was superior to other IL catalysts. The high catalytic activities, easy reusability and high stability were the key properties of the novel catalyst, which hold great potential for green chemical processes.

Hair growth composition containing citric acid esters

Triesters of citric acid are used for inducing, maintaining or increasing hair growth. Compositions for topical application to mammalian hair or scalp comprise an effective amount of from 1% to 99% by weight of an ester of citric acid having the structure (1): where, R1, R2 and R3 each independently represent a branched or unbranched alkyl, alkenyl, aryl, alkylaryl or arylalkyl group, each said group having from 1 to 18 carbon atoms, R4 represents -H, or a branched or unbranched saturated or unsaturated acyl, alkyl, aryl, alkylaryl or aylalkyl group having from 1 to 18 carbon atoms, in the presence of a cosmetically acceptable vehicle for the citric acid ester and in the absence of solid absorbent for the ester;, said effective amount of said ester being sufficient to increase hair growth in the rat, when said composition is applied topically thereto over a period of no more than three months, by at least 10% more than that obtainable using a control composition from which the said ester has been omitted, in accordance with the Rat Hair Growth Test.