199855-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199855-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,8,5 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 199855-77:
(8*1)+(7*9)+(6*9)+(5*8)+(4*5)+(3*5)+(2*7)+(1*7)=221
221 % 10 = 1
So 199855-77-1 is a valid CAS Registry Number.
199855-77-1Relevant academic research and scientific papers
Strategies for the selective synthesis of monosubstituted (Dichloromethylene)bisphosphonate esters
Ahlmark, Marko J.,Vepsaelaeinen, Jouko J.
, p. 16153 - 16160 (2007/10/03)
Strategies for the selective synthesis of monosubstituted (dichloromethylene)bisphosphonate esters (Cl2C[P(O)(OR)(O-Na+)][P(O)(O- Na+)2], where R = Pr, Pr(i), Hex, Ph) starting from monopho
