- Angelic anhydride
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- $50.00
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2026-07-17
- CAS:94487-74-8
- Purity: 99.94%
- Supply Ability: 10g
- Angelic anhydride
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2023-02-24
- CAS:94487-74-8
- Min. Order: 20mg
- Purity: ≥98%(HPLC)
- Supply Ability: 100 g
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| | ANGELIC ANHYDRIDE Basic information |
| Product Name: | ANGELIC ANHYDRIDE | | Synonyms: | Angelic anhydride 94487-74-8;ANGELIC ANHYDRIDE;CIS-2-METHYLCROTONIC ANHYDRIDE;CIS-2,3-DIMETHYLACRYLIC ANHYDRIDE;2-METHYLISOCROTONIC ANHYDRIDE;(Z)-2-METHYL-2-BUTENOIC ANHYDRIDE;Bis[(Z)-2-methyl-2-butenoic acid] anhydride;Bis[(Z)-2-methyl-2-butenoic] anhydride | | CAS: | 94487-74-8 | | MF: | C10H14O3 | | MW: | 182.22 | | EINECS: | | | Product Categories: | | | Mol File: | 94487-74-8.mol |  |
| | ANGELIC ANHYDRIDE Chemical Properties |
| Boiling point | 108 °C / 13mmHg | | density | 1,02 g/cm3 | | refractive index | 1.4720-1.4750 | | storage temp. | 0-10°C | | solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | | form | clear liquid | | color | Colorless to Light orange to Yellow | | InChIKey | LIHLSLRANKCHLV-SFECMWDFSA-N |
| RIDADR | 3265 | | HS Code | 2916.19.5000 | | HazardClass | 8 | | PackingGroup | III |
| | ANGELIC ANHYDRIDE Usage And Synthesis |
| Uses | Angelic Anhydride is a reagent in the improved synthesis of angelate esters, which are the active chemical behind the strong pain-relieving and spasmolytic action of extracts from the plant butterbur. | | Synthesis | Angelic anhydride (dahuric anhydride) was prepared as follows: to a solution of angelic acid (5 g, 50 mmol) in dichloromethane (100 mL) at room temperature was added N,N’ Dicyclohexylcarbodiimide (8.6 mL, 60% in xylene, 25 mmol). The reaction mixture was stirred at this temperature for 1 hour. The precipitate was filtered. The filtrate was concentrated in vacuum. The residue was purified by chromatography (petroleum ether/ethyl acetate 10:1) to give 4.3 g of the title compound dahuric anhydride as an oil (94%). 1H NMR (300 MHz, CDCl3)δ 6.376.25 (m, 2H), 2.06 (dq, J=7.4, 1.5 Hz, 6H), 1.971.93 (m, 6H).
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| | ANGELIC ANHYDRIDE Preparation Products And Raw materials |
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