126989-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126989-87-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,9,8 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 126989-87:
(8*1)+(7*2)+(6*6)+(5*9)+(4*8)+(3*9)+(2*8)+(1*7)=185
185 % 10 = 5
So 126989-87-5 is a valid CAS Registry Number.
126989-87-5Relevant academic research and scientific papers
Reactions of Meldrum's Acid with Isocyanates and Isothiocyanates
Augustin, Manfred,Guenther, Eckhard
, p. 1005 - 1015 (2007/10/02)
Meldrum's acid (1) reacts with isothiocyanates and LiH as base, yielding after alkylation the ketene-S,N-acetales 3, 4 and 5.Protonation of the lithium-thiolate 2 gives the thioamides 7 with tautomers 8, which can be methylated with diazomethane to 9.From
