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20188-28-7

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20188-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20188-28-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,8 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20188-28:
(7*2)+(6*0)+(5*1)+(4*8)+(3*8)+(2*2)+(1*8)=87
87 % 10 = 7
So 20188-28-7 is a valid CAS Registry Number.

20188-28-7Relevant articles and documents

POLYBROMINATED AROMATIC COMPOUNDS. II. REACTIONS OF PENTABROMOCHLOROBENZENE WITH SODIUM ALKOXIDES IN PYRIDINE

Shishkin, V. N.,Tachaseichuk, B. S.,Balashov, A. V.,Butin, K. P.

, p. 1302 - 1308 (2007/10/02)

The reaction of pentabromochlorobenzene with sodium methoxide and butoxide in pyridine was investigated.The main reaction products are the products from substitution of the bromine and chlorine atoms by the alkoxy group, and their distribution corresponds

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