1000998-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1000998-45-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,0,9,9 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1000998-45:
(9*1)+(8*0)+(7*0)+(6*0)+(5*9)+(4*9)+(3*8)+(2*4)+(1*5)=127
127 % 10 = 7
So 1000998-45-7 is a valid CAS Registry Number.
1000998-45-7Relevant articles and documents
Synthesis and chemistry of N-arylated pyrano[2,3-c]pyrazoles
Samaritoni, J. Geno,Thornburgh, Scott,Graupner, Paul R.,Cooper, David H.
, p. 1389 - 1393 (2008/09/18)
(Chemical Equation Presented) Novel N2-arylated pyrano[2,3-c]pyrazol-6-ones 2 can be prepared in a selective manner by generating the anion of 1 (R=H) with lithium hexamethyldisilazide in DMF and quenching with activated aryl halides. Sterically demanding
