7698-69-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7698-69-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,9 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7698-69:
(6*7)+(5*6)+(4*9)+(3*8)+(2*6)+(1*9)=153
153 % 10 = 3
So 7698-69-3 is a valid CAS Registry Number.
InChI:InChI=1/C27H44O4/c1-16(2)7-6-8-17(3)18-10-12-27(31)20-13-22(28)21-14-23(29)24(30)15-25(21,4)19(20)9-11-26(18,27)5/h13,16-19,21,23-24,29-31H,6-12,14-15H2,1-5H3/t17-,18?,19+,21+,23-,24+,25-,26-,27?/m1/s1
7698-69-3Relevant articles and documents
Novel synthesis of 22,25-dideoxyecdysone and its 5α-isomer
Kovganko,Survilo
, p. 340 - 343 (2007/10/03)
22,25-Dideoxyecdysone (1) and 5α-22,25-dideoxyecdysone (1a) were prepared from cholesterol via a new scheme using the key intermediates 3β-chloro-5α-bromo-6-ketone 3, 3β-chloro-7α -bromo-6-ketone 4, and 2,7-dien-6-one 7.
Synthesis of ecdysone. 3. A novel synthesis of 14alpha-hydroxy-7-en-6-oxo steroids.
Mori,Shibata,Tsuneda,Sawai
, p. 1593 - 1600 (2007/10/14)
-