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1207721-51-4

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1207721-51-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1207721-51-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,7,7,2 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1207721-51:
(9*1)+(8*2)+(7*0)+(6*7)+(5*7)+(4*2)+(3*1)+(2*5)+(1*1)=124
124 % 10 = 4
So 1207721-51-4 is a valid CAS Registry Number.

1207721-51-4Downstream Products

1207721-51-4Relevant articles and documents

Annulation of thioimidates and vinyl carbodiimides to prepare 2-aminopyrimidines, competent nucleophiles for intramolecular alkyne hydroamination. Synthesis of (-)-crambidine

Perl, Nicholas R.,Ide, Nathan D.,Prajapati, Sudeep,Perfect, Hahdi H.,Duron, Sergio G.,Gin, David Y.

supporting information; experimental part, p. 1802 - 1803 (2010/04/24)

(Chemical Presented) A convergent synthesis of (-)-crambidine is reported. The sequence capitalizes on two novel key transformations, including a [4+2] annulation of thioimidates with vinyl carbodiimides and an alkyne hydroamination employing 2-aminopyrimidine nucleophiles. Copyright

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