Crotonic anhydride
- CAS No.
- 623-68-7
- Chemical Name:
- Crotonic anhydride
- Synonyms
- Nsc97397;Wln: 2U1vov1U2;CROTONIC ANHYDRIDE;2-Butensureanhydrid;CROTONSAEUREANHYDRID;2-butenoic anhydride;Dicrotonic anhydride;Biscrotonic anhydride;crotonicacidanhydride;But-2-enoic anhydride
- CBNumber:
- CB6751209
- Molecular Formula:
- C8H10O3
- Molecular Weight:
- 154.17
- MDL Number:
- MFCD00009286
- MOL File:
- 623-68-7.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Crotonic anhydride (mixture of cis and trans isomers) for synthesis | 8.22002 | 100mL | $43.4 |
| Crotonic Anhydride >98.0%(T) | C0420 | 25g | $17 |
| Crotonic anhydride | TRC-C818793-500MG | 500mg | $72 |
| Crotonic anhydride | TRC-C818793-2.5G | 2.5g | $97 |
| Crotonic anhydride | TRC-C818793-1G | 1g | $84 |
| More product size | |||
| Melting point | -20°C |
|---|---|
| Boiling point | 248 °C(lit.) |
| Density | 1.04 g/mL at 25 °C(lit.) |
| vapor pressure | 1 hPa (25 °C) |
| refractive index |
n |
| Flash point | 231 °F |
| storage temp. | Store below +30°C. |
| solubility | soluble in Ether |
| form | clear liquid |
| color | Colorless to Light orange to Yellow |
| 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 |
| SMILES | O(C(=O)\C=C\C)C(=O)\C=C\C |
| CAS DataBase Reference | 623-68-7(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | N521PMQ949 |
| EPA Substance Registry System | 2-Butenoic acid, anhydride (623-68-7) |
| UNSPSC Code | 12352106 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314-H400 | |||||||||
| Precautionary statements | P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363 | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 3265 8/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | GQ6125000 | |||||||||
| Autoignition Temperature | 290 °C | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 2916 19 95 | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| Storage Class | 8A - Combustible, corrosive hazardous materials | |||||||||
| Hazard Classifications | Aquatic Acute 1 Eye Dam. 1 Skin Corr. 1B |
|||||||||
| Hazardous Substances Data | 623-68-7(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orally in Rabbit: 2061 mg/kg | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
Crotonic anhydride price More Price(20)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 8.22002 | Crotonic anhydride (mixture of cis and trans isomers) for synthesis | 623-68-7 | 100mL | $43.4 | 2026-04-30 | Buy |
| TCI Chemical | C0420 | Crotonic Anhydride >98.0%(T) | 623-68-7 | 25g | $17 | 2026-04-30 | Buy |
| TRC | TRC-C818793-500MG | Crotonic anhydride | 623-68-7 | 500mg | $72 | 2026-06-03 | Buy |
| TRC | TRC-C818793-2.5G | Crotonic anhydride | 623-68-7 | 2.5g | $97 | 2026-06-03 | Buy |
| TRC | TRC-C818793-1G | Crotonic anhydride | 623-68-7 | 1g | $84 | 2026-06-03 | Buy |
Crotonic anhydride Chemical Properties,Uses,Production
Uses
Crotonic anhydride belongs to the organic chemical intermediates, is an important organic chemical raw materials, in the dyestuff industry is used as fur dyes, reactive dyestuffs intermediates; in the cosmetic industry is used as a high-grade cosmetics, such as skin creams, hair conditioners, shampoos, creams, and other additives; in the pharmaceutical industry as a pharmaceutical antimicrobial drugs, sulfonamides as raw materials for drugs. Crotonic anhydride can also be used in the preparation of butenoic acid fiber and coal dye, hair dye, color developer, epoxy resin curing agent, petroleum additives, rubber antioxidants and other synthetic.
Chemical Properties
Colorless to pale yellow liquid
Uses
Crotonic anhydride is also known as 2-butenoic anhydride is commonly used as a precursor in the synthesis of polymers. Its reactive anhydride group makes it an effective acylating agent in esterification reactions, facilitating the formation of esters by reacting with alcohols.
Synthesis Reference(s)
Tetrahedron Letters, 33, p. 593, 1992 DOI: 10.1016/S0040-4039(00)92318-9
Safety Profile
Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
Crotonic anhydride Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29626 | 60 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29766 | 58 |
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | 0531-68652808 18953170293 | sales@sdzschem.com | China | 2921 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 | sales@amoychem.com | China | 6339 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17339 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +86-189 4982 3763 | sales@tnjchem.com | China | 34526 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1059@dideu.com | China | 29096 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 17705817739 | info@dycnchem.com | China | 52693 | 58 |
| ShanDong Look Chemical Co.,Ltd. | 17653113209 13065062079 | sales01@sdlookchemical.com | China | 2921 | 58 |
| Shandong Zhishang New Material Co., Ltd. | +8617653113209 | sales002@sdzschem.com | China | 2921 | 58 |
View Lastest Price from Crotonic anhydride manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-04-04 | Crotonic anhydride
623-68-7
|
1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd. | ||
 |
2019-07-06 | Crotonic anhydride
623-68-7
|
$7.00 | 1kg | 99% | 100kg | Career Henan Chemical Co |
-
- Crotonic anhydride
623-68-7
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- Crotonic anhydride
623-68-7
- $7.00
- 99%
- Career Henan Chemical Co
