Crotonic anhydride

Basic Information

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CAS Number

623-68-7

Molecular Formula

C8H10O3

Molecular Weight

154.17 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Esters

Basic Chemical Raw Materials Organic Chemicals Ethers

Basic Physical Properties

Melting Point

72 DEG C

Boiling Point

131°C/20mmHg

Density

1.04 g/mL at 25 °C

Flash Point

231 °F

Refractive Index

n20/D 1.473(lit.)

SMILES

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CC=CC(=O)OC(=O)C=CC

InChI

InChI=1S/C8H10O3/c1-3-5-7(9)11-8(10)6-4-2/h3-6H,1-2H3/b5-3+,6-4+

InChIKey

VJDDQSBNUHLBTD-GGWOSOGESA-N

LogP

1.2084

Topological Polar Surface Area

43.370000000000005 Å²

Hydrogen Bond Donor/Acceptor

0 / 3

Complexity

179

Safety Information

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Hazard Statement

H290 May be corrosive to metals
Corrosive to Metals

H303 May be harmful if swallowed
Acute toxicity, oral

H314 Causes severe skin burns and eye damage
Skin corrosion/irritation

Hazard Class

Class 8 Class 8

Sensitiveness

Sensitive to湿度 (humidity)

Synonyms & References

English

But-2-enoicanhydride
NSC97397
EN300-4290253
DTXSID50870710
78957-07-0
Crotonic acid anhydrous??
2-Butenoic anhydride
2-Butenoic acid, anhydride, (2E,2'E)-
(E)-but-2-enoic anhydride
NSC-97397
AKOS015912798
VJDDQSBNUHLBTD-GGWOSOGESA-N
SCHEMBL16505
EINECS 210-807-1
Anhydrid kyseliny krotonove
UNII-N521PMQ949
But-2-enoic anhydride
623-68-7
Crotonic acid anhydride
2-Butenoic acid, 1,1'-anhydride
SCHEMBL16503
CROTONIC ANHYDRIDE
N521PMQ949
MFCD00009286
Crotonic anhydride, 95%
[(E)-but-2-enoyl] (E)-but-2-enoate
HSDB 2815
(E)-but-2-enoic acid [(E)-but-2-enoyl] ester
2-Butenoic acid, anhydride
CROTONIC ANHYDRIDE [HSDB]
(2E)-but-2-enoyl (2E)-but-2-enoate

MDL Number

MFCD00009286

Customs Code

2916190090

FAQ

What is Crotonic anhydride (CAS: 623-68-7)?

Crotonic anhydride (CAS: 623-68-7) is a colorless, pungent liquid used primarily in organic synthesis. It has the chemical formula (CH2=CHCO)2O. This compound is highly reactive and is used as a reagent in the formation of esters and other derivatives.

What are the main uses of Crotonic anhydride (CAS: 623-68-7)?

Crotonic anhydride (CAS: 623-68-7) is mainly used in the synthesis of various organic compounds, including esters, amides, and lactones. It is also utilized in the production of some pharmaceuticals and agricultural chemicals due to its reactivity.

Is Crotonic anhydride (CAS: 623-68-7) safe?

Crotonic anhydride (CAS: 623-68-7) is not considered safe for human contact or inhalation due to its irritant properties. Proper protective equipment, such as gloves and goggles, should be worn when handling it. It is also flammable and should be handled with care.

How should Crotonic anhydride (CAS: 623-68-7) be stored?

Crotonic anhydride (CAS: 623-68-7) should be stored in a cool, dry place away from direct sunlight and heat sources. It should be kept in a tightly sealed container made of appropriate materials, such as glass or stainless steel, to prevent degradation and ensure safety.