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6161-58-6

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6161-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6161-58-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,1,6 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6161-58:
(6*6)+(5*1)+(4*6)+(3*1)+(2*5)+(1*8)=86
86 % 10 = 6
So 6161-58-6 is a valid CAS Registry Number.

6161-58-6Relevant articles and documents

Products of reaction between tetrabromo-substituted ortho- and para-hydroxybenzoic acids and sodium nitrite in CH3COOH

Fadin,Tarasova,Vasin,Shishkin

, p. 1062 - 1070 (2013/01/15)

The reaction of 2,3,5,6-tetrabromo-4-hydroxybenzoic acid with a 10-fold excess of NaNO2 in the glacial acetic acid at 20°C affords tetrabromonitrosophenols whose further transformations under the reaction conditions leads to the formation of a mixture of 2,4,5,6-tetrabromo-p-quinone diazide and tetrabromo-p- and -o-nitrophenols in the molar ratio 37 : 2 : 1. Under similar conditions the 3,4,5,6-tetrabromo-2-hydroxybenzoic acid is converted into a mixture of 3,4,5,6-tetrabromo-o-quinone diazide with the same nitrophenols in the ratio 13 : 1 : 3. The reaction of sodium 2,3,5,6-tetrabromo-4-hydroxy-benzoate with NaNO2 in dilute acetic acid resulted in a quantitative yield of tetrabromo-p-quinone monooxime. Pleiades Publishing, Ltd., 2012.

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