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299898-20-7

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299898-20-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 299898-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,8,9 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 299898-20:
(8*2)+(7*9)+(6*9)+(5*8)+(4*9)+(3*8)+(2*2)+(1*0)=237
237 % 10 = 7
So 299898-20-7 is a valid CAS Registry Number.

299898-20-7Relevant articles and documents

Air-stable, storable, and highly selective chiral Lewis acid catalyst

Ueno, Masaharu,Ishitani, Haruro,Kobayashi, Shu

, p. 3395 - 3397 (2002)

(matrix presented) An air-stable storable, and highly selective chiral Lewis acid catalyst for asymmetric Mannich-type reactions has been developed. The catalyst can be stored for more than three months in air at room temperature without loss of activity.

Catalytic enantioselective addition of propionate units to imines: An efficient synthesis of anti-α-methyl-β-amino acid derivatives

Kobayashi, Shu,Kobayashi, Jun,Ishiani, Haruro,Ueno, Masaharu

, p. 4185 - 4190 (2007/10/03)

Optically active anti-α-methyl-β-amino acid derivatives have been prepared based on catalytic enantioselective addition of propionate units to simple and inert imines using a chiral zirconium complex. High reactivity and selectivity with wide substrate sc

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