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Santai Labs, Inc.
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519-85601385 |
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marketing@santailabs.com |
| Products Intro: |
Product Name:allocinnamic acid
CAS:102-94-3
Purity:97% HPLC Package:25G;100G;1kg;25kg
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| | allocinnamic acid Basic information |
| Product Name: | allocinnamic acid | | Synonyms: | 3-Phenyl-cis-2-propenoic acid;2-Propenoic acid, 3-phenyl-, (Z)-;Cinnamic acid, (Z)-;Nsc174025;(2Z)-3-Phenylacrylic acid;allocinnamic acid;(Z)-3-Phenyl-2-propenoic acid;(Z)-Cinnamic acid | | CAS: | 102-94-3 | | MF: | C9H8O2 | | MW: | 148.16 | | EINECS: | | | Product Categories: | | | Mol File: | 102-94-3.mol |  |
| | allocinnamic acid Chemical Properties |
| Melting point | 42°C | | Boiling point | 208.74°C (rough estimate) | | density | 1.0061 (rough estimate) | | refractive index | 1.5049 (estimate) | | pka | 4.34±0.10(Predicted) | | Water Solubility | 8.45g/L(25 ºC) | | LogP | 2.412 (est) |
| | allocinnamic acid Usage And Synthesis |
| Definition | ChEBI: The Z (cis) isomer of cinnamic acid | | Purification Methods | The cis-acid is prepared by catalytic reduction of phenylpropiolic acid and after distillation in a high vacuum at ~95o it gives the most stable allo-isomer m 68o. Recrystallisation from pet ether yields Liebermann's iso-cinnamic acid m 58o . When the allo-acid (m 68o) is heated at 20o above its melting point in a sealed capillary for 0.5hours and allowed to cool slowly, Erlenmyer's iso-cinnamic acid m 4 2o is formed. This form can also be obtained in larger amounts by heating the allo-acid at 80o for 3hours, and on cooling it remains liquid for several weeks but gives the m 42o acid on innoculation with the crystals from the capillary tube. This form is unchanged in 6 weeks when kept in a dark cupboard. All three forms have the same pK values and the same rate of bromination. There is also a very labile form with m 32o. [Liebermann, Chem Ber 26 1572 1893, Claisen & Crismer Justus Liebigs Ann Chem 218 135 1883, Robinson & James J Chem Soc 1453 1933, Berthoud & Urech Helv Chim Acta 13 437 1930, McCoy & McCoy J Org Chem 33 2354 1968, Beilstein 9 IV 2001.] |
| | allocinnamic acid Preparation Products And Raw materials |
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