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3421-95-2

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3421-95-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3421-95-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,2 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3421-95:
(6*3)+(5*4)+(4*2)+(3*1)+(2*9)+(1*5)=72
72 % 10 = 2
So 3421-95-2 is a valid CAS Registry Number.

3421-95-2Relevant articles and documents

NOVEL REACTIVE BENZOTRIAZOLE UV ABSORBER AND USE THEREOF

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Paragraph 0044-0045; 0085-0086, (2021/07/17)

A novel reactive benzotriazole UV absorber and a use thereof are disclosed. The benzotriazole UV absorber is represented by the following formula (I): wherein, A, R1, R2 and X are defined in the specification.

Synthesis of benzotriazole monomer

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Page/Page column 17, (2010/12/26)

The synthesis of benzotriazole monomers and the use of the benzotriazole monomers and one or more other monomers to prepare ultraviolet (UV) light absorbing polymer compositions. The synthetic methods described in this application provide a significant improvement over the previous methods used to prepare benzotriazole monomers.

Highly enantioselective resolution of terminal epoxides with cross-linked polymeric salen-Co(III) complexes

Song, Yuming,Chen, Huilin,Hu, Xinquan,Bai, Changmin,Zheng, Zhuo

, p. 7081 - 7085 (2007/10/03)

Crosslinked polymeric salen-Co(III) complexes derived from a novel dialdehyde and a trialdehyde were synthesized and employed in the hydrolytic kinetic resolution (HKR) of terminal epoxides. Up to 99% ee were obtained with only 0.16-0.02 mol% of catalyst (based on catalytic unit).

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