438-08-4 Usage
Purification Methods
Crystallise etiocholanic acid from glacial acetic acid and sublime it at 160o/0.002mm. The ethyl ester has m 77.5-78.5o (from EtOH) [] 546 +52.5o (c 0.61, pyridine). [Jacobs & Elderfield J Biol Chem 108 497 1935, Weiland et al. Hoppe Seyler's Z Physiol Chem 161 80 1926, Beilstein 9 III 2644.]
Check Digit Verification of cas no
The CAS Registry Mumber 438-08-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,3 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 438-08:
(5*4)+(4*3)+(3*8)+(2*0)+(1*8)=64
64 % 10 = 4
So 438-08-4 is a valid CAS Registry Number.
InChI:InChI=1/C20H32O2/c1-19-11-4-3-5-13(19)6-7-14-15-8-9-17(18(21)22)20(15,2)12-10-16(14)19/h13-17H,3-12H2,1-2H3,(H,21,22)/t13-,14-,15-,16-,17+,19-,20-/m0/s1
