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77740-73-9

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77740-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77740-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,4 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77740-73:
(7*7)+(6*7)+(5*7)+(4*4)+(3*0)+(2*7)+(1*3)=159
159 % 10 = 9
So 77740-73-9 is a valid CAS Registry Number.

77740-73-9Upstream product

77740-73-9Relevant articles and documents

Preparation of 4-Aryl-1,2,3,4-tetrahydro-3,3-dimethylisoquinolines and 1,2,3,4-Tetrahydro-3,3-dimethyl-4-phenylbenzisoquinolines

Bobowski, George,Gottlieb, Jeffrey M.,West, Barbara

, p. 1563 - 1568 (2007/10/02)

Synthetic procedures to prepare a number of 4-aryl-1,2,3,4-tetrahydro-3,3-dimethylisoquinolines and their benzo-homologues 3 through a series of intermediates are described.The condensation of α-(1-amino-1-methylethyl)arylmethanols 5 with arylaldehydes 6

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