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198987-18-7

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198987-18-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198987-18-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,9,8 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 198987-18:
(8*1)+(7*9)+(6*8)+(5*9)+(4*8)+(3*7)+(2*1)+(1*8)=227
227 % 10 = 7
So 198987-18-7 is a valid CAS Registry Number.

198987-18-7Relevant articles and documents

Sulfur-directed synthesis of enantiopure hydroxy 2-sulfinyl butadienes

Fernandez De La Pradilla, Roberto,Martinez, Maria Victoria,Montero, Carlos,Viso, Alma

, p. 7773 - 7776 (1997)

Epoxy vinyl sulfoxides, generated in situ from sulfinyl chlorohydrins, undergo an efficient base-induced rearrangement to generate enantiopure hydroxy 2-sulfinyl dienes. The chiral sulfur auxillary controls the E-Z stereoselectivity of the trisubstituted

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