109826-82-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109826-82-6 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, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109826-82:
(8*1)+(7*0)+(6*9)+(5*8)+(4*2)+(3*6)+(2*8)+(1*2)=146
146 % 10 = 6
So 109826-82-6 is a valid CAS Registry Number.
109826-82-6Relevant articles and documents
SYNTHESIS OF 5-SUBSTITUTED 4-O-METHYL TETRAMATES
Jones, Raymond C.F,Bates, Andrew D.
, p. 5285 - 5288 (1986)
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.