31191-92-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31191-92-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,1,9 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31191-92:
(7*3)+(6*1)+(5*1)+(4*9)+(3*1)+(2*9)+(1*2)=91
91 % 10 = 1
So 31191-92-1 is a valid CAS Registry Number.
31191-92-1Relevant articles and documents
β-Cleavage of Bis(homoallylic) Potassium Alkoxides. Synthesis of γ-Damascone
Snowden, Roger L.,Linder, Simon M.
, p. 1587 - 1597 (2007/10/02)
Starting from the γ-lactone cis-1, two new syntheses of γ-damascone ((E)-4) are described.In both syntheses, the key step involves the β-cleavage of a bis(homoallylic)potassium alkoxide, viz. the transformation of 3a to 20 and (E/Z)-4, and the conversion
