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149248-39-5

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149248-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149248-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,2,4 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 149248-39:
(8*1)+(7*4)+(6*9)+(5*2)+(4*4)+(3*8)+(2*3)+(1*9)=155
155 % 10 = 5
So 149248-39-5 is a valid CAS Registry Number.

149248-39-5Relevant articles and documents

With double-to the body structure of the organic second-order non-linear optical chromophore and synthetic method and use (by machine translation)

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Paragraph 0062-0063, (2017/10/13)

The present invention has offered a kind of double-to the body structure of the organic second-order non-linear optical chromophore, the with double to the body structure of the organic second-order non-linear optical chromophore has the following structure: Wherein R1 Is methyl or trifluoromethyl; R2 Is alkyl or phenyl. The invention used with a two-to the body structure of the electron donor, conjugated π electronic bridge and electronic receptor are combined together in the molecule after the electronic transmission capacity, can improve the electro-optic coefficient. In addition, the synthesized chromophores with double to the body structure, can effectively reduce the intermolecular interaction force. The said organic second order non-linear optical chromophore with amorphous polycarbonate doped for synthetic polymer film, the polymer film can be used as a synthetic light signal modulation material. (by machine translation)

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