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313695-94-2

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313695-94-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 313695-94-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,3,6,9 and 5 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 313695-94:
(8*3)+(7*1)+(6*3)+(5*6)+(4*9)+(3*5)+(2*9)+(1*4)=152
152 % 10 = 2
So 313695-94-2 is a valid CAS Registry Number.

313695-94-2Downstream Products

313695-94-2Relevant articles and documents

Modified guanidines as potential chiral superbases. 2. Preparation of 1,3-unsubstituted and 1-substituted 2-iminoimidazolidine derivatives and a related guanidine by the 2-chloro-1,3-dimethylimidazolinium chloride-induced cyclization of thioureas

Isobe,Fukuda,Tokunaga,Seki,Yamaguchi,Ishikawa

, p. 7774 - 7778 (2007/10/03)

Simple preparation methods for modified guanidines were explored for new chiral superbases. Thus, (4S,5S)-4,5-diphenyl- and diastereomeric cyclohexane-fused 2-iminoimidazolidines were prepared from (1S,2S) - 1,2 -diphenylethylenediamine and (1R,2R)- or (1S,2S)-1,2-diaminocyclohexanes through cyclization of protected thiourea intermediates with 2-chloro-1,3-dimethylimidazolinium chloride (DMC) as a key reaction. In the (4S,5S)-4,5-diphenyl series 1-methyl-2-iminoimidazolidines and 2-diethylaminoimidazoline were also prepared as related guanidines.

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