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4973-20-0

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4973-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4973-20-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,7 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4973-20:
(6*4)+(5*9)+(4*7)+(3*3)+(2*2)+(1*0)=110
110 % 10 = 0
So 4973-20-0 is a valid CAS Registry Number.

4973-20-0Relevant articles and documents

Efficient synthesis of chlorohydrins using ClCH2MgCl·LiCl

Nishimura, Rodolfo H.V.,Toledo, Fabiano T.,Lopes, Jo?o L.C.,Clososki, Giuliano C.

, p. 287 - 290 (2013/02/23)

The mixed lithium-magnesium carbenoid ClCH2MgCl·LiCl was easily generated in THF through the reaction of chloroiodomethane with i-PrMgCl·LiCl at -78 °C. This reagent reacts well with a number of aldehydes to give the corresponding chlorohydrins in good yields.

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