50590-13-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50590-13-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,5,9 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 50590-13:
(7*5)+(6*0)+(5*5)+(4*9)+(3*0)+(2*1)+(1*3)=101
101 % 10 = 1
So 50590-13-1 is a valid CAS Registry Number.
50590-13-1Relevant articles and documents
Statistical Syntheses of Rotaxanes
Schill, Gottfried,Beckmann, Wolfgang,Vetter, Walter
, p. 941 - 954 (2007/10/02)
The acetalisation of the 28-membered cyclic diols 11a, b with the long-chain dibromo ketone 12 gives acetals 13a, b.These compounds react with triphenylmethyllithium to give 17a, b and 18a, b from which the rotaxanes 20a, b are obtained in 0.066 or 0.18 a
