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:
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
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.
signalword
Danger
hcodes
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
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)
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
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