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42060-33-3

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42060-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42060-33-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,6 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42060-33:
(7*4)+(6*2)+(5*0)+(4*6)+(3*0)+(2*3)+(1*3)=73
73 % 10 = 3
So 42060-33-3 is a valid CAS Registry Number.

42060-33-3Relevant articles and documents

Method for catalytic synthesis of N-benzyl benzene sulfonamide compounds by boric acid/oxalic acid catalytic system under microwave radiation

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Paragraph 0031; 0062, (2018/09/11)

The invention discloses a method for catalytic synthesis of N-benzyl benzene sulfonamide compounds by a boric acid/oxalic acid catalytic system under microwave radiation. The method includes: adoptingbenzyl alcohol and derivatives thereof and benzene sulfonamide derivatives as raw materials, adopting the boric acid/oxalic acid system as a catalyst, and adopting fluorobenzene as a solvent; performing reaction in a microwave reactor under certain temperature and power conditions, performing vacuum concentration after reaction for a period of time, and subjecting a product to column chromatographic purification to realize efficient catalytic preparation of the N-benzyl benzene sulfonamide compounds. Compared with the prior art, the method has advantages of evidently higher reaction speed than that of conventional heating, mild reaction conditions, simplicity in operation, high yield, safety, low cost and environmental friendliness.

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