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99433-20-2

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99433-20-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99433-20-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,4,3 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99433-20:
(7*9)+(6*9)+(5*4)+(4*3)+(3*3)+(2*2)+(1*0)=162
162 % 10 = 2
So 99433-20-2 is a valid CAS Registry Number.

99433-20-2Downstream Products

99433-20-2Relevant articles and documents

Thiophen-2-yl and bithienyl substituted pyrazine-2,3-dicarbonitriles as precursors for tetrasubstituted zinc azaphthalocyanines

M?rkved, Eva H.,Andreassen, Trygve,Fr?hlich, Roland,Mo, Frode,Gonzalez, Susana V.

, p. 201 - 210 (2013/07/31)

Peripheral thiophen-2-yl substituents extend the macrocyclic conjugation of zinc(II)azaphthalocyanines, (ZnAzaPc), due to coplanarity between the two ring systems, and red-shifted UV-Vis Q-bands are observed. This lowering in energy is favourable for vari

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