ChemicalBook >> CAS DataBase List >>Caronic anhydride
Caronic anhydride
- CAS No.
- 67911-21-1
- Chemical Name:
- Caronic anhydride
- Synonyms
- 6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione;aronicanhydride;caronic anhydride;Calderon anhydride;Vanillin Impurity 4;Caronic Anhydride >WIDELY Caronic anhydride;Caronic anhydride(Cas number:67911-21-1);6,6-Dimethyl-3-oxabicyclo[3.1.]hexane-2,4-dione;6,6-Dimethyl-3-oxa-bicyclo[3.1.0]hexan-2,4-dione
- CBNumber:
- CB3855588
- Molecular Formula:
- C7H8O3
- Molecular Weight:
- 140.14
- MDL Number:
- MFCD09751198
- MOL File:
- 67911-21-1.mol
- MSDS File:
- SDS
Last updated:2026-01-12 17:28:22
| Product description | Number | Pack Size | Price |
| Caronic Anhydride >98.0%(GC)(T) | C2596 | 1g | $102 |
| Caronic Anhydride >98.0%(GC)(T) | C2596 | 5g | $368 |
| Caronic Anhydride | C184263 | 500mg | $65 |
| Caronic Anhydride | C184263 | 100mg | $45 |
| Caronic Anhydride | FC75910 | 10g | $57.6 |
| More product size | |||
| Melting point | 53-57℃ |
|---|---|
| Boiling point | 246°C |
| Density | 1.274 |
| Flash point | 113°C |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| solubility | soluble in Methanol |
| form | Solid |
| color | White |
| Sensitive | Moisture Sensitive |
| InChI | InChI=1S/C7H8O3/c1-7(2)3-4(7)6(9)10-5(3)8/h3-4H,1-2H3 |
| InChIKey | QKAHKEDLPBJLFD-UHFFFAOYSA-N |
| SMILES | C12C(C1(C)C)C(=O)OC2=O |
| CAS DataBase Reference | 67911-21-1(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 2914199090 | |||||||||
| NFPA 704 |
|
Caronic anhydride price More Price(28)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | C2596 | Caronic Anhydride >98.0%(GC)(T) | 67911-21-1 | 1g | $102 | 2025-07-31 | Buy |
| TCI Chemical | C2596 | Caronic Anhydride >98.0%(GC)(T) | 67911-21-1 | 5g | $368 | 2025-07-31 | Buy |
| TRC | C184263 | Caronic Anhydride | 67911-21-1 | 500mg | $65 | 2021-12-16 | Buy |
| TRC | C184263 | Caronic Anhydride | 67911-21-1 | 100mg | $45 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FC75910 | Caronic Anhydride | 67911-21-1 | 10g | $57.6 | 2021-12-16 | Buy |
Caronic anhydride Chemical Properties,Uses,Production
Chemical Properties
White crystalline powder
Uses
Caronic anhydride, also known as 6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione, is a pharmaceutical intermediate mainly used as a synthesis of Boceprevir, an oral protease inhibitor of hepatitis C. It is widely used in agricultural chemicals and other organic synthesis field.
Synthesis
Step 1: Ethyl dichlorochrysanthemate in ethyl acetate is ozonized at -5C until conversion exceeds 99%. Work-up, saponification, acidification, extraction, and concentration yield 3,3-dimethyl-1,2-cyclopropanedicarboxylic acid.
Step 2: The diacid is heated with acetic anhydride and sodium acetate at 170C to form the anhydride via dehydration. Work-up and recrystallization from toluene/petroleum ether give 6,6-dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione (Caronic anhydride).
Caronic anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 374)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Safer Pharmaceutical Technology Co., Ltd. | 021-31761238 | sales@saferph.com | CHINA | 897 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1026@dideu.com | China | 18843 | 58 |
| Jiangxi Huihe Chemical Co., Ltd. | +86-19189228086 +8618858568638 | wuzhouding@huihecrop.com | China | 886 | 58 |
| Shaoxing Fangxiao Chemical Co., LTD | +86-13456999252 +86-13868192239 | kenny@fangxiaochem.com | China | 50 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8752 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Hangzhou ICH Biofarm Co., Ltd | +86-0571-28186870; +undefined8613073685410 | sales@ichemie.com | China | 1006 | 58 |
| airuikechemical co., ltd. | +86-18353166132 | sales02@airuikechemical.com | China | 983 | 58 |
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-13017695106 +86-13676922317 | jiuyitime@fdachem.com | China | 16513 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29735 | 60 |
View Lastest Price from Caronic anhydride manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-06 | Caronic anhydride
67911-21-1
|
US $0.00-0.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2026-03-06 | Caronic anhydride
67911-21-1
|
US $0.00-0.00 / kg | 1kg | 99% | 500kg | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2026-01-04 | Caronicanhydride
67911-21-1
|
US $0.00-0.00 / kg | 1kg | 99.0% | 20 tons | Hangzhou ICH Biofarm Co., Ltd |
-
- Caronic anhydride
67911-21-1
- US $0.00-0.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Caronic anhydride
67911-21-1
- US $0.00-0.00 / kg
- 99%
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Caronicanhydride
67911-21-1
- US $0.00-0.00 / kg
- 99.0%
- Hangzhou ICH Biofarm Co., Ltd
67911-21-1(Caronic anhydride)Related Search:
6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione
caronic anhydride
6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione caronic anhydride aronicanhydride
aronicanhydride
3-Oxabicyclo[3.1.0]hexane-2,4-dione,6,6-diMethyl-
6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione (Caronic anhydride)
6,6-dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-quinone
6,6-Dimethyl-3-oxabicyclo[3.1.]hexane-2,4-dione
Caronic anhydride(Cas number:67911-21-1)
Caronic Anhydride >
3,3-Dimethyl-1,2-cyclopropanedicarboxylic Anhydride
WIDELY Caronic anhydride
Calderon anhydride
Vanillin Impurity 4
(1R,5S)-6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione
6,6-Dimethyl-3-oxa-bicyclo[3.1.0]hexan-2,4-dione
67911-21-1
API
1
3
67911-21-1
