1141556-59-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1141556-59-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,1,5,5 and 6 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1141556-59:
(9*1)+(8*1)+(7*4)+(6*1)+(5*5)+(4*5)+(3*6)+(2*5)+(1*9)=133
133 % 10 = 3
So 1141556-59-3 is a valid CAS Registry Number.
1141556-59-3Relevant articles and documents
Phospha-Michael reactions involving P-heterocyclic nucleophiles
Keglevich, Gyoergy,Sipos, Melinda,Takacs, Daniella,Ludanyi, Krisztina
, p. 288 - 292 (2008)
P-heterocyclic γ-ketophosphonates were synthesized by the Michael reaction of methyl vinyl ketone with dibenzo-1,2-oxaphosphorine 2-oxide, 1,3,2-dioxaphosphorine 2-oxide and benzo1,3,2-dioxaphospholane 2-oxide, respectively. In the first two cases, 50% of
