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1258204-03-3

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1258204-03-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258204-03-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,2,0 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1258204-03:
(9*1)+(8*2)+(7*5)+(6*8)+(5*2)+(4*0)+(3*4)+(2*0)+(1*3)=133
133 % 10 = 3
So 1258204-03-3 is a valid CAS Registry Number.

1258204-03-3Relevant articles and documents

Enantioselective Organocatalyzed Bromolactonizations: Applications in Natural Product Synthesis

Aursnes, Marius,Tungen, J?rn E.,Hansen, Trond V.

, p. 8287 - 8295 (2016/09/28)

Asymmetric bromolactonization reactions of δ-unsaturated carboxylic acids have been investigated in the presence of 10 chiral squaramide hydrogen-bonding organocatalysts. The best catalyst enabled the cyclization of several 5-arylhex-5-enoic acids into th

Asymmetric iodolactonization utilizing chiral squaramides

Tungen, Jorn E.,Nolsoe, Jens M. J.,Hansen, Trond V.

, p. 5884 - 5887 (2013/02/23)

Asymmetric iodolactonization of γ- and δ-unsaturated carboxylic acids has been explored in the presence of six different chiral organocatalysts 5-8. The catalyst 6b was found to facilitate the cyclization of 5-arylhex-5-enoic acids 1 to the corresponding

Asymmetric bromolactonization catalyzed by a C3-symmetric chiral trisimidazoline

Murai, Kenichi,Matsushita, Tomoyo,Nakamura, Akira,Fukushima, Shunsuke,Shimura, Masato,Fujioka, Hiromichi

supporting information; experimental part, p. 9174 - 9177 (2011/02/26)

A productive alliance: In an enantioselective organocatalytic bromolactonization of 5-substituted hex-5-enoic acids (see scheme), it appears that the formation of an ion pair through interaction of the trisimidazoline catalyst 1 with the substrate both cr

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