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56057-02-4

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56057-02-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56057-02-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,0,5 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56057-02:
(7*5)+(6*6)+(5*0)+(4*5)+(3*7)+(2*0)+(1*2)=114
114 % 10 = 4
So 56057-02-4 is a valid CAS Registry Number.

56057-02-4Relevant articles and documents

Synthesis of naphtho[2,3-b]-and naphtho[1,2-b]-fused thieno[2,3-d][1] benzoxepins and thieno[2,3-d][1]-benzothiepins

Landek, Ivana Ozimec,Pesic, Dijana,Trojko, Rudolf,Bogdanovic, Maja Devcic,Mercep, Mladen,Mesic, Milan

, p. 2269 - 2290 (2011/03/23)

Synthesis of four novel classes of structurally related fused hetero-pentacyclic compounds, naphtho[2,3-b]thieno[2,3-d][1]benzothiepins (Ia), naphtho[1,2-b]thieno[2,3-d][1]benzothiepins (IIa), naphtho[2,3-b]thieno-[2,3-d] [1]benzoxepins (Ib, c) and naphth

Synthesis of 7 (4 methylpiperazino) 7,8 dihydrobenzo[b] naphtho[2,1 f]thiepin and of related compounds

Kopicova,Protiva

, p. 3147 - 3152 (2007/10/05)

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