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197440-52-1

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197440-52-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197440-52-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,4,4 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 197440-52:
(8*1)+(7*9)+(6*7)+(5*4)+(4*4)+(3*0)+(2*5)+(1*2)=161
161 % 10 = 1
So 197440-52-1 is a valid CAS Registry Number.

197440-52-1Upstream product

197440-52-1Downstream Products

197440-52-1Relevant articles and documents

Neutral ligands for selective chloride anion complexation: (α,α, α,α)-5,10,15,20-tetrakis(2- (arylurea)phenyl)porphyrins

Jagessar, Raymond C.,Shang, Maoyu,Robert Scheidt,Burns, Dennis H.

, p. 11684 - 11692 (2007/10/03)

A series of neutral, urea-appended, free-base porphyrins and their Zn(II) complexes have been synthesized and characterized. The (α,α, α,α)- 5,10,15,20-tetrakis(2-(arylurea)phenyl)porphyrins bind strongly (K (M-1) > 103-105/sup

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