1027236-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1027236-28-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,2,3 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1027236-28:
(9*1)+(8*0)+(7*2)+(6*7)+(5*2)+(4*3)+(3*6)+(2*2)+(1*8)=117
117 % 10 = 7
So 1027236-28-7 is a valid CAS Registry Number.
1027236-28-7Relevant articles and documents
New efficient synthesis of 1-hydroxymethylene-1,1-bisphosphonate monomethyl esters
Migianu, Evelyne,Guénin, Erwann,Lecouvey, Marc
, p. 425 - 428 (2005)
A new efficient procedure for the synthesis of 1-hydroxymethylene-1,1- bisphosphonate monomethyl esters in three steps from acid chlorides is reported here. Georg Thieme Verlag Stuttgart.