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27749-09-3

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27749-09-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27749-09-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,7,4 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 27749-09:
(7*2)+(6*7)+(5*7)+(4*4)+(3*9)+(2*0)+(1*9)=143
143 % 10 = 3
So 27749-09-3 is a valid CAS Registry Number.

27749-09-3Downstream Products

27749-09-3Relevant articles and documents

Synthesis of chloroesters by the reaction of ethers with acyl chlorides catalyzed by ZnO

Tang, Yuqi,Feng, Chengliang,Yang, Wanfeng,Ji, Min,Wang, Wei,Chen, Junqing

, p. 1 - 8 (2021)

An efficient method for the synthesis of chloroesters by the reaction of ethers with acyl chlorides catalyzed by nano-ZnO under solvent-free condition at room temperature was described. The method is compatible with a range of ethers including tricyclic ethers, tetracyclic ethers, pentacyclic ethers and hexacyclic ethers and have afforded the products with moderate to good yields. The ZnO could be reused up to three times and the product yield after three cycles is 87%.

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