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90916-41-9

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90916-41-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90916-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,1 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 90916-41:
(7*9)+(6*0)+(5*9)+(4*1)+(3*6)+(2*4)+(1*1)=139
139 % 10 = 9
So 90916-41-9 is a valid CAS Registry Number.

90916-41-9Downstream Products

90916-41-9Relevant articles and documents

Method for synthesizing nitro (hetero) aromatic hydrocarbon

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Paragraph 0118-0120; 0127-0129, (2022/04/08)

The invention discloses a method for synthesizing nitro (hetero) aromatic hydrocarbon, and belongs to the field of organic synthesis. According to the method, simple (hetero) aromatic hydrocarbon is taken as an initial raw material and is stirred and reacted in an organic solvent at 40-100 DEG C under the action of a nitration reagent, a lewis acid catalyst and protective gas, and nitro (hetero) aromatic hydrocarbon can be obtained. The method provided by the invention has the advantages of cheap and easily available raw materials, mild reaction conditions, simple preparation process, good chemical selectivity, wide substrate application range, easy amplification and the like, has great application potential, and lays a good foundation for industrial production.

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