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3-??-????-5-??????

3-??-????-5-??????
3-??-????-5-?????? ??? ???
?? ??:
51424-66-9
???:
3-??-????-5-??????
???(??):
3-??-????-5-??????
???:
3-BETA-ACETOXY-5-ETIOCHOLENIC ACID
???(??):
3β-acetoxy-5-etiocholenic acid;ETIENIC ACID ACETATE;ETIOCHOLENIC ACID ACETATE;3β-Acetoxyetiocholenic Acid;3-BETA-ACETOXYETIOCHOLENIC ACID;(-)-3BETA-ACETOXY-5-ETIENIC ACID;3-BETA-ACETOXY-5-ETIOCHOLENIC ACID;(-)-3BETA-ACETOXY-5-ETIENIC ACID PURUM;(-)-3BETA-ACETOXY-5-ETIENIC ACID PURUM 95%;3β-(Acetyloxy)androst-5-ene-17-carboxylic acid
CBNumber:
CB9418730
???:
C22H32O4
??? ??:
360.49
MOL ??:
51424-66-9.mol

3-??-????-5-?????? ??

???
237-241 °C
?? ?
483.761±45.00 °C(Press: 760.00 Torr)(predicted)
??
1.166±0.10 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)
?? ?? (pKa)
4.781±0.70(predicted)

??

????? 22-24/25
WGK ?? 3

3-??-????-5-?????? C??? ??, ??, ??

Purification Methods

The acid is purified by recrystallisation from Me2CO, Et2O/pentane, or AcOH, dried in a vacuum oven (105o/20mm) and sublimed at high vacuum. [Staunton & Eisenbram Org Synth 42 4 1962, Steiger & Reichstein Helv Chim Acta 20 1404 1937.]

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