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136891

cis-1,2,3,6-Tetrahydrophthalic anhydride

95%

Synonym(s):

cis-4-Cyclohexene-1,2-dicarboxylic anhydride

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About This Item

Empirical Formula (Hill Notation):
C8H8O3
CAS Number:
935-79-5
Molecular Weight:
152.15
UNSPSC Code:
12162002
NACRES:
NA.23
PubChem Substance ID:
24848300
EC Number:
213-308-7
Beilstein/REAXYS Number:
82341
MDL number:
MFCD00005916
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vapor density

5.2 (vs air)

Quality Segment

100

vapor pressure

<0.01 mmHg ( 20 °C)

assay

95%

form

flakes

mp

97-103 °C (lit.)

SMILES string

[H][C@@]12CC=CC[C@]1([H])C(=O)OC2=O

InChI

1S/C8H8O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-2,5-6H,3-4H2/t5-,6+

InChI key

KMOUUZVZFBCRAM-OLQVQODUSA-N

Application

cis-1,2,3,6-Tetrahydrophthalic anhydride (THPA) can be used as:
  • A curing agent for epoxides.
  • A chemical modifier in the modification of polystyrene via Friedel-Crafts acylation for enhancing the thermal stability of the polymer.
  • A reactant for the synthesis of cis-tetrahydroisoindole-1,3-dione derivatives and cyclic diimides.

pictograms

Health hazardCorrosion
GHS08,GHS05

signalword

Danger

Hazard Classifications

Aquatic Chronic 3 - Eye Dam. 1 - Resp. Sens. 1 - Skin Sens. 1

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

312.8 °F - closed cup

flash_point_c

156 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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