18926-44-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18926-44-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,2 and 6 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 18926-44:
(7*1)+(6*8)+(5*9)+(4*2)+(3*6)+(2*4)+(1*4)=138
138 % 10 = 8
So 18926-44-8 is a valid CAS Registry Number.
18926-44-8Relevant articles and documents
Synthesis of the 5-Thiorotenoid System from Thiochroman-3-one
Gabbutt, Christopher D.,Hepworth, John D.,Heron, B. Mark
, p. 3015 - 3018 (2007/10/02)
Base-induced cyclisation of the diketones 10 (X = H or F), prepared in a two-step sequence from thiochroman-3-one, affords 6H,12H-benzothiopyranobenzopyran-12-ones 11.Reduction with diisobutylaluminium hydride affords a separable mixture of t