87930-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87930-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,3 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87930-22:
(7*8)+(6*7)+(5*9)+(4*3)+(3*0)+(2*2)+(1*2)=161
161 % 10 = 1
So 87930-22-1 is a valid CAS Registry Number.
87930-22-1Relevant articles and documents
Formation of methylphosphonous acid by alkylation of yellow phosphorus
Weferling, Norbert,Sicken, Martin,Hoerold, Sebastian
, p. 1757 - 1761 (2002)
Methylphosphonous acid is a key intermediate in the synthesis of phosphinic acid salts, a new class of halogen-free flame retardants. This paper describes a novel and simple synthesis of this synthon: By alkylation of elemental yellow phosphorus with meth
