273721-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 273721-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,3,7,2 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 273721-40:
(8*2)+(7*7)+(6*3)+(5*7)+(4*2)+(3*1)+(2*4)+(1*0)=137
137 % 10 = 7
So 273721-40-7 is a valid CAS Registry Number.
273721-40-7Relevant articles and documents
A novel synthesis of chiral cyclopentyl- and cyclohexyl-amines
Pinho, Pedro,Andersson, Pher G.
, p. 597 - 598 (2007/10/03)
A new route to multifunctionalised chiral cyclopentyl- and cyclohexyl-amines was developed by means of a new reaction involving the ring opening of a 2-azabicyclo-[2.2.1] or -[2.2.2] structure in high yields.
