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1370650-73-9

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1370650-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1370650-73-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,0,6,5 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1370650-73:
(9*1)+(8*3)+(7*7)+(6*0)+(5*6)+(4*5)+(3*0)+(2*7)+(1*3)=149
149 % 10 = 9
So 1370650-73-9 is a valid CAS Registry Number.

1370650-73-9Relevant articles and documents

New preparation method of 4-aminoindan compound

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Paragraph 0011; 0027-0029, (2019/10/01)

The invention relates to a new preparation method of a 4-aminoindan compound. 4-Aminoindan is an important medical intermediate. With carboxybenzaldehyde as an initial raw material, through esterification, condensation, cyclization, reduction elimination, Curtius rearrangement, an amidogen deprotection reaction and a hydrogenation reaction in sequence, the 4-aminoindan is prepared. According to the method, the problems of difficult generation of isomers, difficult separation of substitution products and the like in a traditional method are solved, the whole preparation method is convenient toimplement, the yield is high, and the method has great industrial prospects.

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