127844-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127844-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,8,4 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 127844-31:
(8*1)+(7*2)+(6*7)+(5*8)+(4*4)+(3*4)+(2*3)+(1*1)=139
139 % 10 = 9
So 127844-31-9 is a valid CAS Registry Number.
127844-31-9Relevant academic research and scientific papers
A facile synthesis of stable precursors to 2-alkylated and 2,3-dialkylated 1,3-butadienes
Chou,Sun
, p. 1035 - 1038 (2007/10/02)
3-Sulfolenes 3, stable precursors to 2-alkylated and 2,3-dialkylated 1,3-butadienes, were prepared in good yield from (1) by regiospecific alkylation and reductive desulfurization.
