695188-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 695188-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,5,1,8 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 695188-71:
(8*6)+(7*9)+(6*5)+(5*1)+(4*8)+(3*8)+(2*7)+(1*1)=217
217 % 10 = 7
So 695188-71-7 is a valid CAS Registry Number.
695188-71-7Relevant articles and documents
A study of polychlorinated leucine derivatives: Synthesis of (2S,4S)-5,5-dichloroleucine
Ardá, Ana,Jiménez, Carlos,Rodríguez, Jaime
, p. 3241 - 3243 (2004)
The first total synthesis of (2S,4S)-5,5-dichloroleucine has been achieved in 11 steps from L-pyroglutamic acid. A key step is the dichlorination process on the hydrazone of aldehyde 13 with CuCl2 in triethylamine.