32174-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 32174-69-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,1,7 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 32174-69:
(7*3)+(6*2)+(5*1)+(4*7)+(3*4)+(2*6)+(1*9)=99
99 % 10 = 9
So 32174-69-9 is a valid CAS Registry Number.
InChI:InChI=1/C27H40O4/c1-15(2)7-6-8-16(3)18-9-10-19-23-20(11-12-26(18,19)4)27(5)14-17(24(23)29)22(28)13-21(27)25(30)31/h13,15-20,23H,6-12,14H2,1-5H3,(H,30,31)
32174-69-9Relevant articles and documents
Rearrangement des cycles A et B du squelette du cholesterol par l'intermediaire des derives de l'acide de Butenandt
Dang Vu, Bien,Ba, Doudou,Bourdon, Sylvie,Vuilhorgne, Marc,Dhaleine, Fabrice,Bourdon, Raymond
, p. 613 - 619 (2007/10/02)
Treatment of dihydro Butenandt acid 5 with boiling acetic anhydride and sodium acetate gives the dilactone 8 which may be hydrolysed to 9, an isomer of 5 by inversion at C-5.Heated with quinoline, 5 affords 6, which gives 10 by hydrolysis, 20 by brominati