228853-19-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 228853-19-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,8,5 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 228853-19:
(8*2)+(7*2)+(6*8)+(5*8)+(4*5)+(3*3)+(2*1)+(1*9)=158
158 % 10 = 8
So 228853-19-8 is a valid CAS Registry Number.
228853-19-8Relevant articles and documents
A facile route to the total synthesis of gigantetrocin A
Wang, Zhi-Min,Tian, Shi-Kai,Shi, Min
, p. 667 - 670 (1999)
A highly efficient synthetic method of the trans-mono-tetrahydrofuran (THF) ring building block was established and the title compound synthesized in 19 steps from trans-1,4-dichloro-2-butene via a convergent route with a Wittig reaction as the key step.