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18888-20-5

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18888-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18888-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,8 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18888-20:
(7*1)+(6*8)+(5*8)+(4*8)+(3*8)+(2*2)+(1*0)=155
155 % 10 = 5
So 18888-20-5 is a valid CAS Registry Number.

18888-20-5Relevant articles and documents

Synthesis of vinyl thioethers and bis-thioethenes from calcium carbide and disulfides

Rodygin, Konstantin S.,Gyrdymova, Yuliya V.,Zarubaev, Vladimir V.

, p. 476 - 478 (2017/10/05)

Bis-thioethenes and vinyl thioethers were obtained from the reaction of disulfides and calcium carbide in good to high yields using a simple synthetic procedure and common laboratory setup. The tolerance of the reaction was investigated by the examples of aliphatic, aromatic, heteroaromatic and sesquiterpenic substrates.

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