4554-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4554-22-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,5 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4554-22:
(6*4)+(5*5)+(4*5)+(3*4)+(2*2)+(1*2)=87
87 % 10 = 7
So 4554-22-7 is a valid CAS Registry Number.
4554-22-7Relevant articles and documents
Can C-H ··· C(π) bonding be classified as hydrogen bonding? A systematic investigation of C-H ··· C(π) bonding to cyclopentadienyl anions
Harder
, p. 1852 - 1861 (2007/10/03)
The following ammonium and phosphonium cyclopentadienide complexes have been prepared, crystallized and investigated structurally: [Cp]-[Et4N]+, [Cp]-[Et4P]+, [Cp]-[Ph3/sub