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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

Quality Level

100

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

Related Categories

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

CorrosionHealth hazard
GHS05,GHS08

Signal Word

Danger

Hazard Statements

H317 - H318 - H334

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH SVHC Candidate List

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
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
Peter E Westerweel et al.
Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology, 14(6), 294-297 (2005-11-16)
Understanding neovascularization is an important prerequisite for therapeutic advances aimed at the salvation of ischemic tissues. We explored an alternative strategy to corrosion casting for visualizing neovascularization in a rat hindlimb ischemia model. Rats were subjected to hindlimb ischemia by
Electrical impedance spectroscopy of epoxy systems: The case of 1, 4-butanediol diglycidyl ether/cis-1, 2-cyclohexanedicarboxylic anhydride and triethylamine as initiator.
Nucci AM, et al.
European Polymer Journal, 42(1), 195-202 (2006)
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
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