109826-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109826-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,2 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109826-93:
(8*1)+(7*0)+(6*9)+(5*8)+(4*2)+(3*6)+(2*9)+(1*3)=149
149 % 10 = 9
So 109826-93-9 is a valid CAS Registry Number.
109826-93-9Relevant academic research and scientific papers
SYNTHESIS OF 5-SUBSTITUTED 4-O-METHYL TETRAMATES
Jones, Raymond C.F,Bates, Andrew D.
, p. 5285 - 5288 (2007/10/02)
4-Methoxy-Δ3-pyrrolin-2-ones (4-O-methyl tetramates) are alkylated at C-5 via a lithio-derivative; an N-substituent may be introduced either during or after heterocycle formation.
