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894104-86-0

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894104-86-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 894104-86-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,4,1,0 and 4 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 894104-86:
(8*8)+(7*9)+(6*4)+(5*1)+(4*0)+(3*4)+(2*8)+(1*6)=190
190 % 10 = 0
So 894104-86-0 is a valid CAS Registry Number.

894104-86-0Relevant articles and documents

Cyclic tetramer of a metalloporphyrin based on a quadruple hydrogen bond

Ohkawa, Haruki,Takayama, Akihiro,Nakajima, Satoshi,Nishide, Hiroyuki

, p. 2225 - 2228 (2006)

This paper describes the selective formation of a cyclic tetramer from a readily synthesized metalloporphyrin with two self-complementary quadruple hydrogen-bonding units. The extremely strong quadruple hydrogen-bonding unit, 2-ureido-4[1H]-pyrimidinone,

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