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Merck
CN

123463

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:
Molecular Weight:
154.16
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
EC Number:
201-604-9
MDL number:
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Product Name

1,2-Cyclohexanedicarboxylic anhydride, predominantly cis, 95%

InChI key

MUTGBJKUEZFXGO-OLQVQODUSA-N

InChI

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

SMILES string

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

assay

95%

form

solid

bp

158 °C/17 mmHg (lit.)

mp

32-34 °C (lit.)

Quality Level

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.

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.

pictograms

Health hazardCorrosion

signalword

Danger

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk

WGK 1

ppe

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


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Gunvor Johannesson et al.
Toxicology and applied pharmacology, 194(1), 69-78 (2004-01-20)
Hexahydrophthalic anhydride (HHPA), an industrially important chemical, is a highly allergenic compound. The aim of this work was to identify proteins in nasal lavage fluid (NLF) that form adducts with HHPA. Such bindings may induce production of specific immunoglobulin E
Gunvor A Johannesson et al.
Biomedical chromatography : BMC, 22(3), 327-332 (2007-10-17)
An immunoaffinity extraction (IAE) column was prepared for extraction of adducts between human serum albumin (HSA) and hexahydrophthalic anhydride (HHPA). HHPA is a strong sensitizer inducing immunoglobulin E antibodies in vivo. Polyclonal antibodies from a rabbit immunized with keyhole limpet
The polymerization products of epoxidized oleic acid and epoxidized methyl oleate with cis-1, 2-cyclohexanedicarboxylic anhydride and triethylamine as the initiator: Chemical structures, thermal and electrical properties.
Nicolau A, et al.
Materials Science and Engineering, C, 30(7), 951-962 (2010)
Seema Rosqvist et al.
Scandinavian journal of work, environment & health, 29(4), 297-303 (2003-08-26)
This study investigated the exposure-response relationships of hexahydrophthalic anhydride (HHPA) and methylhexahydrophthalic anhydride (MHHPA) and evaluated the applicability of the total plasma protein adducts (TPPA) of these anhydrides as biomarkers of exposure and risk. In a cross-sectional study of 139
K Jellema et al.
Clinical anatomy (New York, N.Y.), 20(5), 524-529 (2007-04-07)
Spinal dural arteriovenous fistulas (SDAVF) consist of a shunt between a radicular artery and a radicular vein, resulting in a progressive paraparesis. They are most prevalent in middle-aged men (male to female ratio 5 to 1). It is unknown why

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