136994-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136994-75-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,9,9 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 136994-75:
(8*1)+(7*3)+(6*6)+(5*9)+(4*9)+(3*4)+(2*7)+(1*5)=177
177 % 10 = 7
So 136994-75-7 is a valid CAS Registry Number.
136994-75-7Relevant articles and documents
Synthesis of shikimic acid and its phosphonate analogue via knoevenagel condensation
Mirza, Sohail,Harvey, Jeremy
, p. 4111 - 4114 (2007/10/02)
The Knoevenagel condensation and intramolecular olefination have been successfully exploited in a novel synthesis of shikimic acid 1 and its phosphonate analogue 2 from D-lyxose 5-aldehyde 7.