187143-10-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187143-10-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,1,4 and 3 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 187143-10:
(8*1)+(7*8)+(6*7)+(5*1)+(4*4)+(3*3)+(2*1)+(1*0)=138
138 % 10 = 8
So 187143-10-8 is a valid CAS Registry Number.
InChI:InChI=1S/C7H13ClO2S/c8-11(9,10)7-5-3-1-2-4-6-7/h7H,1-6H2
187143-10-8Relevant articles and documents
Synthetic method of macrocyclic inhibitor intermediate cycloheptane sulfonyl chloride
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Paragraph 0017; 0019-0020; 0022-0023; 0025, (2019/12/02)
The invention discloses a synthetic method of a macrocyclic inhibitor intermediate cycloheptane sulfonyl chloride. The synthetic method comprises the following steps of 1, reacting a compound I cycloheptanol with p-toluenesulfonyl chloride to obtain a com
