444992-09-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444992-09-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,9,9 and 2 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 444992-09:
(8*4)+(7*4)+(6*4)+(5*9)+(4*9)+(3*2)+(2*0)+(1*9)=180
180 % 10 = 0
So 444992-09-0 is a valid CAS Registry Number.
444992-09-0Relevant articles and documents
Cyclic oxonium ylides: Building blocks for iterative synthesis of polycyclic ethers
Marms?ter, Fredrik P,Vanecko, John A,West
, p. 2027 - 2040 (2007/10/03)
A series of diazoketones bearing remote benzyl or allyl ethers was subjected to a variety of conditions for catalytic diazodecomposition and cyclic oxonium ylide formation as a possible method for polycyclic ether synthesis. Allyl ethers 19, 25 and 29 und