123463
1,2-Cyclohexanedicarboxylic anhydride, predominantly cis
95%
Synonym(s):
Hexahydrophthalic anhydride
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All Photos(3)
About This Item
Empirical Formula (Hill Notation):
C8H10O3
CAS Number:
Molecular Weight:
154.16
EC Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
Recommended Products
Quality Level
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.
Signal Word
Danger
Hazard Statements
Precautionary Statements
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
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Monica H Kristiansson et al.
Rapid communications in mass spectrometry : RCM, 18(14), 1592-1598 (2004-07-30)
Organic acid anhydrides (OAAs) are low molecular weight, reactive compounds extensively used in industry. Exposure to these compounds may lead to allergic symptoms such as rhinitis and asthma. It is important to develop better and more informative methods for assessment
David Virley et al.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 24(1), 24-41 (2003-12-23)
The purpose of the present set of studies was to develop a new primate model of focal ischemia with reperfusion for long-term functional assessment in the common marmoset. Initially, the cerebral vascular anatomy of the marmoset was interrogated by Araldite-cast
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
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
J Nielsen et al.
Scandinavian journal of work, environment & health, 27(5), 327-334 (2001-11-20)
This study clarified the exposure-response relationships for the organic acid anhydrides (OAA) hexahydrophthalic (HHPA) and methylhexahydrophthalic (MHHPA) anhydrides and the development of specific immunoglobulin (IG) E and G antibodies and work-related symptoms. In an epoxy resin-using factory, air levels of
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