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17688-44-7

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17688-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17688-44-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,8 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17688-44:
(7*1)+(6*7)+(5*6)+(4*8)+(3*8)+(2*4)+(1*4)=147
147 % 10 = 7
So 17688-44-7 is a valid CAS Registry Number.

17688-44-7Relevant articles and documents

Synthesis and application of new S-benzoheterocycle thiobenzoates photoinitiators

Zhao, Ziren,Wang, Chen,Liu, Feng,Zhang, Bianxiang

, p. 3717 - 3726 (2020/05/11)

A series of free radical photoinitiators with thioester bonds were synthesized by the nucleophilic substitution reaction of acyl chloride and thiol or thiophenol. These compounds could be efficiently obtained under mild reaction conditions and were fully

Acylation and alkoxycarbonylation of benzoxazoline-2-thione and benzothiazoline-2-thione

Nishio, Takehiko,Shiwa, Kiyoko

, p. 313 - 324 (2007/10/03)

Acylation of benzoxazoline-2-thione (1) and benzothiazoline-2-thione (2) with acetic anhydride (3) and acyl chlorides (4) gave N-acyl (5, 6) and/or S-acyl (7, 8) derivatives depending on the nature of acylating agents and bases used. Alkoxycarbonylation of 1 with aralkyl chlorocarbonates (9) gave N-alkoxycarbonyl derivatives (10) mainly, while that of 2 with aralkyl chloroccarbonates (9) gave S-alkoxycarbonyl derivatives (12) exclusively. Photolysis of N-acyl derivatives (5 or 6) in the presence of alcohols afforded 1 or 2, respectively, together with esters (16).

S- and N-Acyl Derivatives of 2-Mercaptobenzoxazole; New, Highly Reactive Acylating Agents for Synthesis of Amides and Esters

Ueda, Mitsuru,Seki, Kouji,Imai, Yoshio

, p. 991 - 993 (2007/10/02)

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