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668994-40-9

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668994-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 668994-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,9,9 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 668994-40:
(8*6)+(7*6)+(6*8)+(5*9)+(4*9)+(3*4)+(2*4)+(1*0)=239
239 % 10 = 9
So 668994-40-9 is a valid CAS Registry Number.

668994-40-9Relevant articles and documents

Efficient stereodivergent synthesis of 1,4-dideoxy-1,4-iminohexitols from an (S)-glyceraldimine

Badorrey, Ramón,Cativiela, Carlos,Díaz-De-Villegas, María D.,Díez, Roberto,Gálvez, José A.

, p. 719 - 722 (2007/10/03)

A stereodivergent synthesis of 1,4-dideoxy-1,4-imino-D-mannitol I and D-allitol III from an (S)-glyceraldimine, which is easily prepared from D-mannitol, has been achieved with overall yields of 62% and 49%, respectively. The synthesis is based on the add

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