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77425-42-4

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77425-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77425-42-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,2 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77425-42:
(7*7)+(6*7)+(5*4)+(4*2)+(3*5)+(2*4)+(1*2)=144
144 % 10 = 4
So 77425-42-4 is a valid CAS Registry Number.

77425-42-4Downstream Products

77425-42-4Relevant articles and documents

Bromothiocyanation of Alkenes

Cambie, Richard C.,Larsen, David S.,Rutledge, Peter S.,Woodgate, Paul D.

, p. 58 - 63 (2007/10/02)

Treatment of alkenes with "thicyanogen bromide" prepared from equimolar amounts of bromine and thallium (1) thiocyanate in wet chloroform, gives moderate to high yields of vic-bromothiocyanates.The addition proceeds by an ionic mechanism involving nucleophilic attack of bromide ion on anS-cyanothiiranium cation.Unlike vic-iodothiocyanates, the vic-bromothiocyanates are not readily isomerized to the corresponding vic-halogenoisothiocyanates.

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