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Tox21_300111
Also known as: 102-76-1, Glyceryl triacetate, Glycerol triacetate, Enzactin, Glycerin triacetate, Triacetine
Molecular Formula
C9H14O6
Molecular Weight
218.20  g/mol
InChI Key
URAYPUMNDPQOKB-UHFFFAOYSA-N
FDA UNII
XHX3C3X673

A triglyceride that is used as an antifungal agent.
1 2D Structure

Tox21_300111

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
2,3-diacetyloxypropyl acetate
2.1.2 InChI
InChI=1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3
2.1.3 InChI Key
URAYPUMNDPQOKB-UHFFFAOYSA-N
2.1.4 Canonical SMILES
CC(=O)OCC(COC(=O)C)OC(=O)C
2.2 Other Identifiers
2.2.1 UNII
XHX3C3X673
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Enzactin

2. Triacetyl Glycerol

3. Triacetyl-glycerol

4. Triacetylglycerol

2.3.2 Depositor-Supplied Synonyms

1. 102-76-1

2. Glyceryl Triacetate

3. Glycerol Triacetate

4. Enzactin

5. Glycerin Triacetate

6. Triacetine

7. Triacetylglycerol

8. Fungacetin

9. Glyped

10. Triacetyl Glycerine

11. Vanay

12. Kesscoflex Tra

13. Kodaflex Triacetin

14. 1,2,3-propanetriol, Triacetate

15. 1,2,3-triacetoxypropane

16. Acetin, Tri-

17. Propane-1,2,3-triyl Triacetate

18. 1,2,3-propanetriol, 1,2,3-triacetate

19. Triacetina

20. Triacetinum

21. 1,2,3-propanetriol Triacetate

22. Triacetin [inn]

23. Ujostabil

24. Estol 1581

25. Fema No. 2007

26. Triacetyl Glycerin

27. Triacetyl Glycerol

28. 1,2,3-propanetriyl Triacetate

29. 1,2,3-triacetylglycerol

30. 2,3-diacetyloxypropyl Acetate

31. Glyceryltriacetate

32. Nsc 4796

33. Triacetin (usp/inn)

34. Acetic, 1,2,3-propanetriyl Ester

35. Enzactin (tn)

36. Nsc-4796

37. Ins No.1518

38. 1,2,3-triacetyl-glycerol

39. 2-(acetyloxy)-1-[(acetyloxy)methyl]ethyl Acetate

40. Ins-1518

41. 1,2,3-triacetyl-sn-glycerol

42. Chebi:9661

43. Xhx3c3x673

44. E1518

45. E-1518

46. Ncgc00091612-04

47. Triacetin (1,2,3-propanetriol Triacetate)

48. Dsstox_cid_6691

49. Dsstox_rid_78184

50. Dsstox_gsid_26691

51. Fema Number 2007

52. Triacetine [inn-french]

53. Triacetinum [inn-latin]

54. Triacetina [inn-spanish]

55. Cas-102-76-1

56. Hsdb 585

57. Einecs 203-051-9

58. Triacetin (glycerol Triacetate)

59. Brn 1792353

60. Triacetin [usp:inn:ban]

61. Unii-xhx3c3x673

62. Enzacetin

63. Euzactin

64. Fungacet

65. Motisil

66. Blekin

67. Tri-acetin

68. Ai3-00661

69. Ccris 9355

70. Triacetin, Cp

71. Triacetin, Fcc

72. Triacetin, Usp

73. 3-triacetoxypropane

74. Glycerine Triacetate

75. Mfcd00008716

76. Triacetin, 99%

77. Spectrum_000881

78. Triacetin [fcc]

79. Triacetin [ii]

80. Triacetin [mi]

81. Triacetin [fhfi]

82. Triacetin [hsdb]

83. Triacetin [inci]

84. Spectrum2_000939

85. Spectrum3_001368

86. Spectrum4_000362

87. Spectrum5_001376

88. Triacetin [vandf]

89. Triacetin [mart.]

90. Ec 203-051-9

91. Triacetin, >=99.5%

92. Schembl3870

93. Triacetin [usp-rs]

94. Triacetin [who-dd]

95. Bspbio_002896

96. Glycerol Triacetate Tributyrin

97. Kbiogr_000823

98. Kbioss_001361

99. 4-02-00-00253 (beilstein Handbook Reference)

100. Mls002152946

101. 1,3-propanetriol, Triacetate

102. Divk1c_000740

103. Glyceryl Triacetate, >=99%

104. Spectrum1500585

105. Triacetin, Analytical Standard

106. Spbio_000878

107. Triacetin, 99%, Fcc, Fg

108. 1,2,3-propanediol Triethanoate

109. Chembl1489254

110. Dtxsid3026691

111. Triacetin [ep Monograph]

112. Fema 2007

113. Hms502e22

114. Kbio1_000740

115. Kbio2_001361

116. Kbio2_003929

117. Kbio2_006497

118. Kbio3_002116

119. Nsc4796

120. Triacetin [usp Monograph]

121. Ninds_000740

122. Hms1921g05

123. Hms2092o09

124. Hms2232i22

125. Pharmakon1600-01500585

126. Triacetin, >=99%, Natural, Fg

127. Hy-b0896

128. Zinc1530705

129. Tox21_111155

130. Tox21_201745

131. Tox21_300111

132. Wln: 1vo1yov1 & 1ov1

133. Ccg-39680

134. Lmgl03012615

135. Nsc757364

136. S4581

137. Triacetin, 8ci, Ban, Inn, Usan

138. 1,2,3-propanetriol Triacetate, 9ci

139. Akos009028851

140. Tox21_111155_1

141. Glyceryl Triacetate, >=99.0% (gc)

142. Nsc-757364

143. 1,3-bis(acetyloxy)propan-2-yl Acetate

144. Idi1_000740

145. Ncgc00091612-01

146. Ncgc00091612-02

147. Ncgc00091612-03

148. Ncgc00091612-05

149. Ncgc00091612-06

150. Ncgc00091612-07

151. Ncgc00091612-09

152. Ncgc00254207-01

153. Ncgc00259294-01

154. Ls-13668

155. Smr001224538

156. Sbi-0051540.p002

157. Ft-0626753

158. G0086

159. En300-19216

160. D00384

161. E 1518

162. E75962

163. Q83253

164. Ab00052112_06

165. A800614

166. Sr-05000002079

167. J-000781

168. Sr-05000002079-1

169. 2-(acetyloxy)-1-[(acetyloxy)methyl]ethyl Acetate #

170. Z1258578263

171. Triacetin, Gta F.g (1,2,3-propanetriol Triacetate)

172. Triacetin, United States Pharmacopeia (usp) Reference Standard

173. Triacetin, Pharmaceutical Secondary Standard; Certified Reference Material

174. 1,2,3-propanetriol Triacetate; Glycerol Triacetate, Usp Grade(1.03000); Triacetine; Glycerol Triacetate; Glyceryl Triacetate; Propane-1,2,3-triyl Triacetate

2.4 Create Date
2005-03-25
3 Chemical and Physical Properties
Molecular Weight 218.20 g/mol
Molecular Formula C9H14O6
XLogP30.2
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count8
Exact Mass218.07903816 g/mol
Monoisotopic Mass218.07903816 g/mol
Topological Polar Surface Area78.9 Ų
Heavy Atom Count15
Formal Charge0
Complexity229
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Therapeutic Uses

/EXPL THER/ Canavan disease (CD) is a fatal dysmyelinating genetic disorder associated with aspartoacylase deficiency, resulting in decreased brain acetate levels and reduced myelin lipid synthesis in the developing brain. Here we tested tolerability of a potent acetate precursor, glyceryl triacetate (GTA), at low doses in two infants diagnosed with CD, aged 8 and 13 months. Much higher doses of GTA were evaluated for toxicity in the tremor rat model of CD. GTA was given orally to the infants for up to 4.5 and 6 months, starting at 25 mg/kg twice daily, doubling the dose weekly until a maximum of 250 mg/kg reached. GTA treatment caused no detectable toxicity and the patients showed no deterioration in clinical status. Lack of GTA toxicity in two CD patients in low-dose trials suggests that higher, effective dose studies in human CD patients are warranted.

PMID:19685155 Madhavarao CN et al; J Inherit Metab Dis 32 (5): 640-50 (2009)


Antifungal Agents; Solvents

National Library of Medicine's Medical Subject Headings. Triacetin. Online file (MeSH, 2015). Available from, as of April 28, 2015: https://www.nlm.nih.gov/mesh/2014/mesh_browser/MBrowser.html


/EXPL THER/ The FDA approved food additive Triacetin (glyceryl triacetate, GTA) has been safely used for acetate supplementation therapy in Canavan disease, a leukodystrophy due to aspartoacylase (ASPA) mutation. This study characterized the effects of GTA on the proliferation and differentiation of six primary glioblastoma (GBM)-derived glioma stem-like cells (GSCs) relative to established U87 and U251 GBM cell lines, normal human cerebral cortical astrocytes, and murine neural stem cells. GTA reduced proliferation of GSCs greater than established GBM lines. Moreover, GTA reduced growth of the more aggressive mesenchymal GSCs greater than proneural GSCs. Although sodium acetate induced a dose-dependent reduction of GSC growth, it also reduced cell viability. GTA-mediated growth inhibition was not associated with differentiation, but increased protein acetylation. These data suggest that GTA-mediated acetate supplementation is a novel therapeutic strategy to inhibit GSC growth.

PMID:25573156 Full text: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4414874 Long PM et al; J Cell Physiol 230 (8): 1929-43 (2015)


/EXPL THER/ Canavan disease (CD) is a rare autosomal recessive neurodegenerative disorder presenting in early infancy. The course of the disease is variable, but it is always fatal. CD is caused by mutations in the ASPA gene, which codes for the enzyme aspartoacylase (ASPA), which breaks down N-acetylaspartate (NAA) to acetate and aspartic acid. The lack of NAA-degrading enzyme activity leads to excess accumulation of NAA in the brain and deficiency of acetate, which is necessary for myelin lipid synthesis. Glyceryltriacetate (GTA) is a short-chain triglyceride with three acetate moieties on a glycerol backbone and has proven an effective acetate precursor. Intragastric administration of GTA to tremor mice results in greatly increased brain acetate levels, and improved motor functions. GTA given to infants with CD at a low dose (up to 0.25 g/kg/d) resulted in no improvement in their clinical status, but also no detectable toxicity. We present for the first time the safety profile of high dose GTA (4.5 g/kg/d) in 2 patients with CD. We treated 2 infants with CD at ages 8 months and 1 year with high dose GTA, for 4.5 and 6 months respectively. No significant side effects and no toxicity were observed. Although the treatment resulted in no motor improvement, it was well tolerated. The lack of clinical improvement might be explained mainly by the late onset of treatment, when significant brain damage was already present. Further larger studies of CD patients below age 3 months are required in order to test the long-term efficacy of this drug.

PMID:21474353 Segel R et al; Mol Genet Metab 103 (3): 203-6 (2011)


For more Therapeutic Uses (Complete) data for TRIACETIN (9 total), please visit the HSDB record page.


4.2 Drug Warning

For external use only: Not for ophthalmic use.

Novak, K.M. (ed.). Drug Facts and Comparisons 59th Edition 2005. Wolters Kluwer Health. St. Louis, Missouri 2005., p. 2024


Irritation or sensitivity: Discontinue treatment and notify physician.

Novak, K.M. (ed.). Drug Facts and Comparisons 59th Edition 2005. Wolters Kluwer Health. St. Louis, Missouri 2005., p. 2024


Diabetics or patients with impaired blood circulation: Use spray with caution.

Novak, K.M. (ed.). Drug Facts and Comparisons 59th Edition 2005. Wolters Kluwer Health. St. Louis, Missouri 2005., p. 2024


5 Pharmacology and Biochemistry
5.1 MeSH Pharmacological Classification

Antifungal Agents

Substances that destroy fungi by suppressing their ability to grow or reproduce. They differ from FUNGICIDES, INDUSTRIAL because they defend against fungi present in human or animal tissues. (See all compounds classified as Antifungal Agents.)


Solvents

Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant and Hackh's Chemical Dictionary, 5th ed) (See all compounds classified as Solvents.)


5.2 Absorption, Distribution and Excretion

...Triacetin is more rapidly absorbed from the gastrointestinal tract in 3 hours than the other fats tested. Triacetin has been shown to be a source of liver glycogen and when fed in amounts equal in caloric value to 15% glucose it was utilized as efficiently as was glucose.

WHO; Food Additive Series 8: Toxicological evaluation of some food colours, thickening agents, and certain other substancse (1975). Available from, as of February 15, 2005: https://www.inchem.org/documents/jecfa/jecmono/v08je12.htm


Mongrel dogs /were used/ to determine the systemic, hindlimb, gut, hepatic, and renal uptake of acetate during infusion of a 5% v/v aqueous solution of triacetin. A primed, continuous infusion of [1-(14)C]-acetate was continued for 7 hr with 10 animals. Three hours after the start of the tracer infusion, the animals were infused with triacetin at a rate of 47 umol/kg/min for 4 hr. Blood and breath samples were taken at 15-min intervals for the last 30 min. Steady-state conditions were achieved in plasma acetate concentrations and specific activity and in expired [(14)-C02]. Plasma acetate concentrations were 1180, 935, 817, 752, and 473 umol/L /(all values approximate)/ in the aorta, renal vein, portal vein, femoral vein, and hepatic vein, respectively. The acetate turnover rate during triacetin infusion was 2214 umol/min; systemic acetate turnover accounted for 68% of triacetin-derived acetate.

Cosmetic Ingredient Review Expert Panel; International Journal of Toxicology: 22(suppl. 2): 1-10 (2003)


5.3 Metabolism/Metabolites

Triacetin has been administered iv to mongrel dogs. The majority of infused triacetin underwent intravascular hydrolysis, and the majority of the resulting acetate is oxidized. Triacetin was found to be hydrolyzed by human intestinal lipase.

Sheftel, V.O.; Indirect Food Additives and Polymers. Migration and Toxicology. Lewis Publishers, Boca Raton, FL. 2000., p. 284


...Triacetin is rapidly hydrolysed in vitro by all tissues of the organism including the gastrointestinal tract.

WHO; Food Additive Series 8: Toxicological evaluation of some food colours, thickening agents, and certain other substancse (1975). Available from, as of February 15, 2005: https://www.inchem.org/documents/jecfa/jecmono/v08je12.htm


Groups of female mongrel dogs to study the metabolic effects of isocaloric and hypercaloric infusions of 5% v/v aqueous triacetin. A primed, continuous infusion of 5 umol/kg (0.3 uCi/kg/min) [(13)C]-acetoacetate and 1.0 uCi/kg (0.01 uCi/kg/min) [(3)H]-glucose was continued for 6 hr. Three hours after the start of the isotope infusion, dosing with triacetin was started. Six animals were infused at a rate of 47 umol/kg/min and seven were infused at a rate of 70 umol/kg/min triacetin for 3 hr. Blood and breath samples were taken at 15 to 30-min intervals. A group of four animals was infused with 70 umol/kg/min glycerol and used as the control for the hypercaloric infusion. During isocaloric infusion of triacetin, plasma acetate and free fatty acid concentrations were significantly increased at 30 and 60 min, respectively, and remained elevated. During hypercaloric infusion, plasma acetate concentration increased progressively throughout the study, whereas the plasma free fatty acid concentration did not change. Plasma pyruvate and lactate concentrations were significantly decreased after 30 and 90 min, respectively, and throughout the study with both isocaloric and hypercaloric infusion. The plasma insulin concentrations were modestly increased during both infusions. Plasma glucose concentration was significantly decreased during isocaloric triacetin infusion; a slight but significant increase was observed with hypercaloric infusion. Glucose clearance decreased significantly in both groups during the last hour of triacetin infusion. Plasma ketone body concentrations increased significantly by 60 min, and they remained elevated with isocaloric infusion and increased progressively with hypercaloric infusion of triacetin; the increased concentrations were due to increased ketone body production. During the last hour of infusion, resting energy expenditure was significantly increased with isocaloric triacetin.

Cosmetic Ingredient Review Expert Panel; International Journal of Toxicology: 22(suppl. 2): 1-10 (2003)


Esterases in fungi or in serum act at pH >4 to slowly release acetic acid in situ. Extent of hydrolysis is automatically limited by increased acidity and lowering of pH.

Patty, F. (ed.). Industrial Hygiene and Toxicology: Volume II: Toxicology. 2nd ed. New York: Interscience Publishers, 1963., p. 1871


... The fungistatic activity of triacetin (glyceryl triacetate) results from its hydrolysis by fungalesterases to acetic acid.

Ullmann's Encyclopedia of Industrial Chemistry. 6th ed.Vol 1: Federal Republic of Germany: Wiley-VCH Verlag GmbH & Co. 2003 to Present, p. V10 391 (2003)


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