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87222-87-5

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87222-87-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87222-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,2 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87222-87:
(7*8)+(6*7)+(5*2)+(4*2)+(3*2)+(2*8)+(1*7)=145
145 % 10 = 5
So 87222-87-5 is a valid CAS Registry Number.

87222-87-5Relevant articles and documents

SYNTHESIS AND AROMATIZATION OF INDOLE DERIVATIVES OF N-IMIDOYLDIHYDROAROMATIC COMPOUNDS

Sheinkman, A. K.,Kozak, I. Yu.,Zemskii, B. P.

, p. 768 - 772 (2007/10/02)

The reaction of indole (methylindoles) with a number of pyridine bases, imidazole, and benzimidazole in the presence of benzimidazolyl chlorides gave N-imidoyl derivatives of dihydro-α(γ)-3-indolylheterocyclic compounds, the aromatization of which under the influence of triphenylmethyl perchlorate or 1-oxo-2,2,6,6-tetramethylpiperidinium perchlorate leads to perchlorates of N-imidoyl heteroaromatic cations.

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