455890-94-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 455890-94-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,5,8,9 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 455890-94:
(8*4)+(7*5)+(6*5)+(5*8)+(4*9)+(3*0)+(2*9)+(1*4)=195
195 % 10 = 5
So 455890-94-5 is a valid CAS Registry Number.
455890-94-5Relevant academic research and scientific papers
Method for preparing 1,4,7,10-tetraaza-2,6-pyridinophane
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Paragraph 0031; 0035, (2017/08/28)
The invention relates to a novel method for preparing 1,4,7,10-tetraaza-2,6-pyridinophane. 2,6-dimethylamino pyridine serving as a raw material is subjected to amino protection through o-/p-nitrobenzenesulfonyl and reacts with N,N-di(2-chloroethyl)-o-/p-n
