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83857-83-4

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83857-83-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83857-83-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,8,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83857-83:
(7*8)+(6*3)+(5*8)+(4*5)+(3*7)+(2*8)+(1*3)=174
174 % 10 = 4
So 83857-83-4 is a valid CAS Registry Number.

83857-83-4Downstream Products

83857-83-4Relevant articles and documents

THE GENERATION OF C,O,O-TRILITHIATED DERIVATIVES OF DIHYDRIC PHENOLS

Saa, Jose M.,Morey, Jeroni,Suner, Guillem,Frontera, Antoni,Costa, Antoni

, p. 7313 - 7316 (2007/10/02)

Halogenated dihydric phenols (hydroquinones and resorcinols) undergo halogen metal exchange with nBuLi/TMEDA/THF or ether (inverse addition) under sonication, thereby generating a C,O,O-trilithiated species which can be trapped with electrophiles.

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