MilliporeSigma
All Photos(3)

Documents

123463

Sigma-Aldrich

1,2-Cyclohexanedicarboxylic anhydride, predominantly cis

95%

Sign Into View Organizational & Contract Pricing

Synonym(s):
Hexahydrophthalic anhydride
Empirical Formula (Hill Notation):
C8H10O3
CAS Number:
Molecular Weight:
154.16
EC Number:
MDL number:
PubChem Substance ID:
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

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
412287B4600125733
vibrant-m

412287

Pyromellitic dianhydride

vibrant-m

125733

Phthalic anhydride

form

solid

form

powder

form

solid

form

flakes

mp

32-34 °C (lit.)

mp

283-286 °C (lit.)

mp

163-166 °C (lit.)

mp

131-134 °C (lit.)

bp

158 °C/17 mmHg (lit.)

bp

397-400 °C (lit.)

bp

-

bp

284 °C (lit.)

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

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

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


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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

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
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
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)
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)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service