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173853-68-4

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173853-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173853-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,8,5 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 173853-68:
(8*1)+(7*7)+(6*3)+(5*8)+(4*5)+(3*3)+(2*6)+(1*8)=164
164 % 10 = 4
So 173853-68-4 is a valid CAS Registry Number.

173853-68-4Downstream Products

173853-68-4Relevant articles and documents

First synthesis of 2-aminopyrrole and simple 1-substituted-2-aminopyrroles. Observation of fast proton exchange at C-5

De Rosa, Michael,Issac, Roy P.,Houghton, Gregory

, p. 9261 - 9264 (2007/10/02)

N-(1-substituent-1H-pyrrol-2-yl)phthalimides can be used to prepare the previously unknown 2-aminopyrrole and 1-substituted-2-aminopyrroles which undergo fast proton exchange at C-5 in acetic acid at 25°C.

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