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91089-11-1

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91089-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91089-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,8 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91089-11:
(7*9)+(6*1)+(5*0)+(4*8)+(3*9)+(2*1)+(1*1)=131
131 % 10 = 1
So 91089-11-1 is a valid CAS Registry Number.

91089-11-1Downstream Products

91089-11-1Relevant articles and documents

Method for synthesizing 2-guanidinothiazole compound by one-pot process

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Paragraph 0014, (2020/11/09)

According to the invention, a substituted methyl ketone compound is innovatively used as a raw material, amidinothiourea is added into an alcohol solvent under the conditions of halogeno salt MX and Oxone, and a one-pot process one-step reaction is carried out to obtain the target 2-guanidinothiazole compound. Common methyl ketone is used for replacing an alpha-halogenated carbonyl compound whichis high in price and toxicity, MX which is low in price and easy to obtain is used as a halogen source, the method is novel, raw materials and reagents are cheap, reaction conditions are mild, and operation is easy and convenient, therefore low-cost, convenient and rapid synthesis of the 2-guanidinothiazole compound is achieved.

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