130985-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130985-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,9,8 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 130985-03:
(8*1)+(7*3)+(6*0)+(5*9)+(4*8)+(3*5)+(2*0)+(1*3)=124
124 % 10 = 4
So 130985-03-4 is a valid CAS Registry Number.
130985-03-4Relevant articles and documents
Synthesis of 6-Acyloxy and 6-Alkoxy Derivatives of 2H-Pyran-3(6H)-ones
Constantinou-Kokotou, Violetta,Kokotos, George,Georgiadis, Minas P.
, p. 151 - 154 (2007/10/02)
The 6-hydroxy-2H-pyran-3(6H)-ones 1a-d are esterified stereoselectively with acetic and formic acid, and with several amino acids and peptide derivatives using the DCC/DMAP method.The direct synthesis of the 6-alkxy derivatives 3g-k is also studied.
