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CAS DataBase List
500-40-3
500-40-3
Name
guaiaretic acid
CAS
500-40-3
Molecular Formula
C20H24O4
Molecular Weight
328.4
MOL File
500-40-3.mol
Synonyms
guaiaretic acid
[R,(-)]-1,4-Bis(4-hydroxy-3-methoxyphenyl)-2,3-dimethyl-1-butene
Phenol, 4,4'-[(1Z,3R)-2,3-dimethyl-1-butene-1,4-diyl]bis[2-methoxy-
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Chemical Properties
Boiling point
490.887±40.00 °C(Press: 760.00 Torr)(predicted)
density
1.150±0.06 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)
pka
10.133±0.20(predicted)
Hazard Information
Purification Methods
Crystallise the acid once from pet ether (b 60-80o), twice from 60% aqueous MeOH and finally from EtOH (m 100-101o). UV has max 207 and 260nm (log 4.64 and 4.28). [King et al. J Chem Soc 4011 1964, Schrecker & Hartwell J Org Chem 21 381 1956.]
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TargetMol Chemicals Inc.
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15002134094
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https://www.targetmol.cn/
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563-78-0
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