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32780-07-7

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32780-07-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 32780-07-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,7,8 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 32780-07:
(7*3)+(6*2)+(5*7)+(4*8)+(3*0)+(2*0)+(1*7)=107
107 % 10 = 7
So 32780-07-7 is a valid CAS Registry Number.

32780-07-7Relevant articles and documents

METHOD FOR PRODUCING THIOLANE SKELETON-TYPE GLYCOCONJUGATE, AND THIOLANE SKELETON-TYPE GLYCOCONJUGATE

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Paragraph 0574-0577, (2016/12/26)

There is provided a production method of a compound represented by the following formula (II) through a step of reacting a compound represented by the following General Formula (I) with a sulfur compound. In General Formulas (I) and (II), R1 represents a hydrogen atom or an acyl group, R2 represents a hydrogen atom, a fluorine atom, an acyloxy group, an arylmethyloxy group, an allyloxy group, an arylmethyloxycarbonyloxy group, or an allyloxycarbonyloxy group, R3 represents a hydrogen atom or an acyloxy group, R5 represents an alkyl group or an aryl group, and X represents a leaving group. Here, in a case where R2 is a fluorine atom, an acyloxy group, an arylmethyloxy group, an allyloxy group, an arylmethyloxycarbonyloxy group, or an allyloxycarbonyloxy group, R3 is an acyloxy group.

A METHOD FOR EASY PREPARATION OF OPTICALLY PURE (S)-5-HYDROXY-2-PENTEN-4-OLIDE AND (S)-5-HYDROXYPENTAN-4-OLIDE

Koseki, Koshi,Ebata, Takashi,Kawakami, Hiroshi,Matsushita, Hajime,Naoi, Yoshitake,Itoh, Kazuo

, p. 423 - 426 (2007/10/02)

A new method for preparation of (S)-5-hydroxy-2-penten-4-olide 1 and (S)-5-hydroxypentan-4-olide 8 starting from levoglucosenone 2 is described.

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