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321973-39-1

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321973-39-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 321973-39-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,9,7 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 321973-39:
(8*3)+(7*2)+(6*1)+(5*9)+(4*7)+(3*3)+(2*3)+(1*9)=141
141 % 10 = 1
So 321973-39-1 is a valid CAS Registry Number.

321973-39-1Relevant academic research and scientific papers

Refractive index changes in polymers bearing pendant active ester groups by thermal rearrangement reaction

Miyasaka, Makoto,Higurashi, Ayano,Kameyama, Atsushi

supporting information; experimental part, p. 1363 - 1365 (2012/01/12)

Linear and branched polymers bearing S-(2-benzoxazolyl) thioester groups were selectively synthesized by free radical and photoinitiated radical polymerization, respectively, of S-(2-benzoxazolyl)-4-vinylthiobenzoate. Upon heating, the pendant S-(2-benzox

Ultrasound promoted synthesis of thioesters from 2-mercaptobenzoxa(thia)zoles

Duarte, Anaí,Cunico, Wilson,Pereira, Claudio M.P.,Flores, Alex F.C.,Freitag, Rogério A.,Siqueira, Geonir M.

experimental part, p. 281 - 283 (2010/12/25)

An ultrasound-enhanced method has been developed for the synthesis of a variety of thioesters from benzoyl chlorides and 2-mercaptobenzoxa(thia)zoles. Applying this methodology, 14 compounds were synthesized in excellent yields.

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