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53803-98-8

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53803-98-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53803-98-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,8,0 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 53803-98:
(7*5)+(6*3)+(5*8)+(4*0)+(3*3)+(2*9)+(1*8)=128
128 % 10 = 8
So 53803-98-8 is a valid CAS Registry Number.

53803-98-8Downstream Products

53803-98-8Relevant articles and documents

Sulfonylation of C(sp3)–H bond for synthesis of 2-sulfolmethyl azaarenes catalyzed by TBAI in water

Dong, Dao-Qing,Gao, Xing,Li, Li-Xia,Hao, Shuang-Hong,Wang, Zu-Li

, p. 7557 - 7567 (2018)

A tetrabutylammonium iodide (TBAI)-catalyzed method for synthesis of 2-sulfolmethyl quinolone has been developed. Using water as solvent, a wide range of 2-sulfolmethyl quinolones were obtained in high to excellent yield. In addition, water and TBAI could be reused for five times without significant decrease of the yield of the corresponding product.

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