555154-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 555154-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,5,1,5 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 555154-34:
(8*5)+(7*5)+(6*5)+(5*1)+(4*5)+(3*4)+(2*3)+(1*4)=152
152 % 10 = 2
So 555154-34-2 is a valid CAS Registry Number.
555154-34-2Relevant academic research and scientific papers
A convenient synthesis of 2,3,4,5-functionalised thieno[2,3-b]thiophenes
Sommen, Geoffroy,Comel, Alain,Kirsch, Gilbert
, p. 735 - 741 (2007/10/03)
A two steps simple synthesis of 2,3,4,5-functionalised thieno[2,3-b]thiophenes 2-6 from ketene dimethylthioacetals is described.
