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111054-64-9

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111054-64-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111054-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,0,5 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 111054-64:
(8*1)+(7*1)+(6*1)+(5*0)+(4*5)+(3*4)+(2*6)+(1*4)=69
69 % 10 = 9
So 111054-64-9 is a valid CAS Registry Number.

111054-64-9Relevant articles and documents

CHEMISTRY OF 1,8-SUBSTITUTED NAPHTHALENES. XIX. SYNTHESIS OF N-SUBSTITUTED 2-AMINONAPHTHOFURYLIUM SALTS

Pikus, A. L.,Mezheritskii, V. V.

, p. 150 - 154 (2007/10/02)

N-Substituted 2-aminonaphthofurylium salts were obtained by heating 8-hydroxy-1-naphthamides with phosphorus oxychloride, whereas the lactone of 8-hydroxy-1-naphthoic acid (naphtholactone) was obtained by heating in trifluoroacetic acid.With phosphorus oxychloride the amide unsubstituted at the nitrogen gives 8-hydroxy-1-naphthonitrile.In organic solvents the synthesized salts react with water and give naphtholactone or open to 8-hydroxy-1-naphthamides, depending on the concentration.The corresponding imino bases were obtained by the deprotonation of the mono-N-substituted salts.

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