128897-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128897-55-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,9 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128897-55:
(8*1)+(7*2)+(6*8)+(5*8)+(4*9)+(3*7)+(2*5)+(1*5)=182
182 % 10 = 2
So 128897-55-2 is a valid CAS Registry Number.
128897-55-2Relevant academic research and scientific papers
α-SUBSTITUIERTE PHOSPHONATE 54. SYNTHESE VON 4-HYDROXYPHENYLMETHAN-BISPHOSPHONSAEURE
Gross, Hans,Ozegowski, Sigrid
, p. 1 - 5 (2007/10/02)
3,5-Di-tert-butyl-4-hydroxyphenylmethane phosphonic acid diethylester (5) and NBS gave the benzylbrominated phosphonate (6), which could be converted with triethylphosphite into the bisphosphonate (4) in high yields.The bisphosphonate (4) with trimethylsi
