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Sigma-Aldrich

1,2-Cyclohexanedicarboxylic anhydride, predominantly cis

95%

Synonym(s):

Hexahydrophthalic anhydride

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About This Item

Empirical Formula (Hill Notation):
C8H10O3
CAS Number:
85-42-7
Molecular Weight:
154.16
EC Number:
201-604-9
MDL number:
MFCD00005926
UNSPSC Code:
12162002
PubChem Substance ID:
24847568
NACRES:
NA.23

assay

95%

form

solid

bp

158 °C/17 mmHg (lit.)

mp

32-34 °C (lit.)

SMILES string

O=C1OC(=O)[C@H]2CCCC[C@@H]12

InChI

1S/C8H10O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h5-6H,1-4H2/t5-,6+

InChI key

MUTGBJKUEZFXGO-OLQVQODUSA-N

General description

Predominantly cis 1,2-cyclohexanedicarboxylic anhydride (HHPA) is a cyclic anhydride that can be used for a variety of applications such as: plasticizer, rust inhibitor, and a curing agent for epoxy based resins.

Application

HPPA, in combination with triethaylamine (TEA), can be used as a polymerization initiator in the preparation of polyester based resins. It can also be used as a hardener to cure 1,4-butanediol diglycidyl ether which can be used as an epoxy based system for electronic devices.

pictograms

Health hazardCorrosion
GHS08,GHS05

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Resp. Sens. 1 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

ppe

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

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Isla Mickey et al.
The Histochemical journal, 34(10), 469-477 (2003-08-30)
In this study, we show the changes in the wall of the middle cerebral artery of a subject who suffered multiple system atrophy with autonomic failure. An electron-immunocytochemical approach was employed to reveal the presence of endothelin-1. Our results demonstrate
Leslie C Grammer et al.
Chest, 121(4), 1317-1322 (2002-04-12)
To determine whether the use of respiratory protective equipment would reduce the incidence of occupational asthma due to exposure to hexahydrophthalic anhydride (HHPA). Prospective cohort study. A facility that makes an epoxy resin product requiring HHPA for its manufacture. Sixty-six
G Johannesson et al.
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 31(7), 1021-1030 (2001-07-27)
Organic acid anhydrides (OAAs) are highly allergenic compounds used in the chemical industry. The OAAs probably act as haptens but the proteins that form conjugates with OAAs in vivo are still unknown. Conjugates between the anhydrides and serum albumins (SAs)
Bénédicte Le Crom et al.
The Journal of the Acoustical Society of America, 127(4), 2220-2230 (2010-04-08)
This paper presents a non-destructive, ultrasonic technique to evaluate the quality of bonds between substrates. Shear-horizontally polarized (SH) wave modes are investigated to infer the shear stiffness of bonds, which is necessarily linked to the shear resistance that is a
Development of new gas chromatography/mass spectrometry procedure for the determination of hexahydrophthalic anhydride in unsaturated polyester resins.
Dugheri S, et al.
Rasayan Journal of Chemistry, 9(4), 657-666 (2016)
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