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199391-98-5

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199391-98-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199391-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,3,9 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 199391-98:
(8*1)+(7*9)+(6*9)+(5*3)+(4*9)+(3*1)+(2*9)+(1*8)=205
205 % 10 = 5
So 199391-98-5 is a valid CAS Registry Number.

199391-98-5Downstream Products

199391-98-5Relevant articles and documents

Intermediate compound, and synthetic method of prothioconazole

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, (2017/07/22)

The invention discloses an intermediate compound, and a synthetic method of prothioconazole. The method comprises the following steps: carrying out a substation reaction on 5,5'-dithio-bis(1,2,4-triazole) and 2-(1-chlorocyclopropyl)-3-chloro-1-(2-chlorophenyl)-2-propanol to obtain the key intermediate compound; and reducing the key intermediate compound to obtain the target product prothioconazole. The synthetic method has the advantages of high conversion rate, high selectivity, cheap and easily available synthesis raw materials, reduction of the production cost, mild and easily controlled technologic reaction conditions, simplicity in operation, easiness in product purification, obtaining of the product through direct re-crystallization, simple and accurate control method of intermediates in all steps, high product yield, good atom economy, avoiding of tedious post-treatment, large competition advantages and industrial production utilization values, avoiding of strong alkalis and other raw materials, extremely low three wastes, and according with the green chemistry idea.

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