Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

8.41321

Sigma-Aldrich

Citraconic anhydride

for synthesis

Synonym(s):

Citraconic anhydride, Methylmaleic anhydride

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C5H4O3
CAS Number:
616-02-4
Molecular Weight:
112.08
MDL number:
MFCD00005522
UNSPSC Code:
12352115
EC Index Number:
210-459-0
NACRES:
NA.22

vapor pressure

1.3 hPa ( 47 °C)

Quality Level

200

assay

≥98.0% (GC)

form

liquid

potency

2600 mg/kg LD50, oral (Rat)
218 mg/kg LD50, skin (Rabbit)

bp

213-214 °C/1013 hPa

mp

7-8 °C

transition temp

flash point 111 °C

density

1.243 g/cm3 at 20 °C

InChI

1S/C5H4O3/c1-3-2-4(6)8-5(3)7/h2H,1H3

InChI key

AYKYXWQEBUNJCN-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.241 - 1.246
Identity (IR): passes test

pictograms

CorrosionHealth hazard
GHS05,GHS08

signalword

Danger

Hazard Classifications

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

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

231.8 °F

flash_point_c

111 °C

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?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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