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100073-66-3

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100073-66-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100073-66-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,0,7 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 100073-66:
(8*1)+(7*0)+(6*0)+(5*0)+(4*7)+(3*3)+(2*6)+(1*6)=63
63 % 10 = 3
So 100073-66-3 is a valid CAS Registry Number.

100073-66-3Relevant articles and documents

HYDROBROMINATION OF N-ARYLSULFONYL-1,4-BENZO(NAPHTHO)QUINONE MONO- AND DIIMINES

Avdeenko, A. P.,Velichko, N. V.

, p. 986 - 991 (2007/10/02)

The hydrobromination of N-arylsulfonyl-1,4-benzo(naphtho)quinone monoimines led to 2-bromo-4-arenesulfonamidophenols (or the corresponding 1-naphthols) and 2,6-dibromo-4-arenesulfonamidophenols.Their oxidation gave N-arylsulfonyl-2-bromo-1,4-benzo(naphtho

REACTION OF HYDROGEN BROMIDE WITH N-(p-TOLYL)- AND N-(p-TOLYLSULFONYL)-1,4-BENZOQUINONE MONOIMINES

Toropin, N. V.,Burmistrov, K. S.,Burmistrov, S. I.,Zaichenko, N. L.

, p. 894 - 899 (2007/10/02)

In the reaction of hydrogen bromide with N-(p-tolyl)-1,4-benzoquinone monoimines bromination of the p-tolyl fragment takes place as well as nucleophilic addition.Bromination is fully suppressed by the addition of resorcinol to the reaction mass.In the case of N-(p-tolylsulfonyl)-1,4-benzoquinone monoimine the products from the entry of two bromine atoms at the ortho position to the oxygen atom are formed sucessively.

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