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27429

Citraconic anhydride

≥99.0% (T)

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About This Item

Empirical Formula (Hill Notation):
C5H4O3
CAS Number:
616-02-4
Molecular Weight:
112.08
EC Number:
210-459-0
UNSPSC Code:
12162002
PubChem Substance ID:
24856577
Beilstein/REAXYS Number:
1835
MDL number:
MFCD00005522
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vapor density

4 (vs air)

assay

≥99.0% (T)

refractive index

n20/D 1.471 (lit.), n20/D 1.472

bp

213-214 °C (lit.)

mp

6-10 °C (lit.)

density

1.247 g/mL at 25 °C (lit.)

SMILES string

CC1=CC(=O)OC1=O

InChI

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

InChI key

AYKYXWQEBUNJCN-UHFFFAOYSA-N

Other Notes

For the reversible blocking of amino groups (e.g. lysine-side chain); Can be used to dissociate nucleoprotein complexes

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pictograms

Health hazardCorrosion
GHS08,GHS05

signalword

Danger

Hazard Classifications

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

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

231.8 °F - closed cup

flash_point_c

111 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

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[49] Reaction of proteins with citraconic anhydride.
M Z Atassi et al.
Methods in enzymology, 25, 546-553 (1972-01-01)
P P Batra
The International journal of biochemistry, 23(12), 1375-1384 (1991-01-01)
The lysine residues were modified to varying degrees (50-91%) with citraconic anhydride to determine the extent of conformational change in ovalbumin. Major findings included: 1. Sixteen of the 20 lysine residues are located on the protein surface, while the remaining
Jian-Zhong Liu et al.
Protein engineering, design & selection : PEDS, 19(4), 169-173 (2006-02-03)
Horseradish peroxidase (HRP) was modified by maleic anhydride and citraconic anhydride. The thermal and organic solvent tolerances of native and modified enzyme were compared. These chemical modifications of HRP increased their thermostability both in aqueous buffer and some organic solvents
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