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136401-03-1

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136401-03-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136401-03-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,4,0 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136401-03:
(8*1)+(7*3)+(6*6)+(5*4)+(4*0)+(3*1)+(2*0)+(1*3)=91
91 % 10 = 1
So 136401-03-1 is a valid CAS Registry Number.

136401-03-1Downstream Products

136401-03-1Relevant articles and documents

POLYBROMINATED AROMATIC COMPOUNDS V. REACTION OF PENTABROMOTOLUENE WITH SODIUM METHOXIDE IN PYRIDINE

Shishkin, V. N.,Lapin, K. K.,Tanaseichuk, B. S.,Butin, K. P.

, p. 1882 - 1887 (2007/10/02)

During the reaction of pentabromotoluene with sodium methoxide in pyridine, together with the products from methoxydebromination and protodebromination, the products from substitution of both the bromine atom in the aromatic ring and hydrogen atom in the methyl group by methoxy groups are formed.The directing effect of the methyl and methoxymethyl groups during substitution of the bromine in the pentabromophenyl ring by the methoxide ion was studied, and it was shown that the directing selectivity of these substituents is low.The methyl group is predominantly a meta-orientant, whereas the methoxymethyl group is predominantly a para-orientant.

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