887771-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 887771-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,7,7,7 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 887771-41:
(8*8)+(7*8)+(6*7)+(5*7)+(4*7)+(3*1)+(2*4)+(1*1)=237
237 % 10 = 7
So 887771-41-7 is a valid CAS Registry Number.
887771-41-7Relevant articles and documents
General synthesis of 8-aryl-2-tetralones
Carreno, M. Carmen,Gonzalez-Lopez, Marcos,Latorre, Alfonso,Urbano, Antonio
, p. 4956 - 4964 (2007/10/03)
Two alternative routes are described for the synthesis of 8-aryl-2-tetralones (1). Route A starts from α-tetralone 3 and involves 3 or 4 steps, with the selective Na-EtOH reduction of 1-aryl-7-methoxynaphthalenes 2 being the key step. The exclusive reduct