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120578-06-5

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120578-06-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120578-06-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,5,7 and 8 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 120578-06:
(8*1)+(7*2)+(6*0)+(5*5)+(4*7)+(3*8)+(2*0)+(1*6)=105
105 % 10 = 5
So 120578-06-5 is a valid CAS Registry Number.

120578-06-5Relevant articles and documents

Synthesis of Unsymmetrical Dithioacetals: An Efficient Synthesis of a Novel LTD4 Antagonist, L-660,711

McNamara, J. M.,Leazer, J. L.,Bhupathy, M.,Amato, J. S.,Reamer, R. A.,et al.

, p. 3718 - 3721 (1989)

An efficient four-step synthesis of the potent LTD4 antagonist L-660,711 (1) is described.The key step involves selective conversion of aldehyde 2 to the unsymmetrical dithioacetal 7, via O-trimethylsilyl hemithioacetal 10.This specific cleavage of the carbon-oxygen bond of a mixed O,S-acetal permits the unprecedented synthesis of unsymmetrical dithioacetals.

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