137527-27-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137527-27-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,2 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137527-27:
(8*1)+(7*3)+(6*7)+(5*5)+(4*2)+(3*7)+(2*2)+(1*7)=136
136 % 10 = 6
So 137527-27-6 is a valid CAS Registry Number.
137527-27-6Relevant articles and documents
A Novel Transacylation Method for the Synthesis of α-N-Acyl-β-lactones; Application to (+/-)-Diacetylobaflorin and (+)-SQ 26,517
Rao, M. Narayana,Holkar, Anil G.,Ayyangar, Nagaraj R.
, p. 1007 - 1008 (1991)
Stereoselective synthesis of (+/-)-diacetylobafluorin and (+)-SQ 26,517 has been accomplished via transacylation of α-N-(2-nitrophenyl)sulphenyl-β-lactones with 2-acetylmercaptobenzothiazoles.
