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79817-03-1

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79817-03-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79817-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,1 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 79817-03:
(7*7)+(6*9)+(5*8)+(4*1)+(3*7)+(2*0)+(1*3)=171
171 % 10 = 1
So 79817-03-1 is a valid CAS Registry Number.

79817-03-1Downstream Products

79817-03-1Relevant articles and documents

Phenolic oxidation of o,o'-dihalogenated phenols

Takahashi, Masakatsu,Konishi, Hironori,Iida, Satoshi,Nakamura, Kensuke,Yamamura, Shosuke,Nishiyama, Shigeru

, p. 5295 - 5302 (2007/10/03)

A detailed inspection of phenolic oxidation products derived from the o,o'-dihalogenated cresol derivatives (1a - 1e) indicated that the bromo and chloro substituents promoted the oxidation leading to the corresponding diaryl ethers, whereas the iodo derivatives provided the diaryls. Selective reduction of 6d and its tyrosine derivative afforded the corresponding diaryl ethers carrying two chlorine atoms (14, 15). Interpretation of the selectivity of the phenolic oxidation was attempted by employing theoretical calculations.

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