402956-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 402956-18-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,5 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 402956-18:
(8*4)+(7*0)+(6*2)+(5*9)+(4*5)+(3*6)+(2*1)+(1*8)=137
137 % 10 = 7
So 402956-18-7 is a valid CAS Registry Number.
402956-18-7Relevant articles and documents
P5X2+ (X = Br, I), a phosphorus-rich binary P-X cation with a C2v-symmetric P5 cage
Krossing,Raabe
, p. 4406 - 4409 (2001)
Insertion of the intermediately formed carbeneanaloguous PX2+ ion (X = Br, I) into one of the P-P bonds of the P4 tetrahedron led to the P5X2+ ion (see structure of the Br derivative)-the first example of the previously unknown class of phosphorus-rich binary P-X cations.
