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817202-68-9

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817202-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 817202-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,7,2,0 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 817202-68:
(8*8)+(7*1)+(6*7)+(5*2)+(4*0)+(3*2)+(2*6)+(1*8)=149
149 % 10 = 9
So 817202-68-9 is a valid CAS Registry Number.

817202-68-9Downstream Products

817202-68-9Relevant articles and documents

Phase transfer catalyzed synthesis of thiosemicarbazide and bis-thiosemicarbazide derivatives of 2-ethoxybenzoic acid

Wei, Tai-Bao,Zhang, You-Ming,Wang, Hai,Gao, Li-Ming

, p. 1539 - 1544 (2007/10/03)

Reaction of aryloxyacetic acid hydrazide or arenedioxydiacetic acid hydrazide with 2-ethoxybenzoy chloride and ammonium thiocyanate under the condition of solid-liquid phase transfer catalysis using polyethylene glycol-400 (PEG-400) as the catalyst yielded the corresponding thiosemicarbazide or bisthiosemicarbazide derivatives of 2-ethoxybenzoic acid in good-to-excellent yield.

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