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1173202-49-7

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1173202-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1173202-49-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,3,2,0 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1173202-49:
(9*1)+(8*1)+(7*7)+(6*3)+(5*2)+(4*0)+(3*2)+(2*4)+(1*9)=117
117 % 10 = 7
So 1173202-49-7 is a valid CAS Registry Number.

1173202-49-7Upstream product

1173202-49-7Downstream Products

1173202-49-7Relevant articles and documents

Synthesis method for tert-butyl 1,2,3-oxathiazolidine-3-carboxylic ester 2,2-dioxide compound

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Paragraph 0041-0047; 0118-0124, (2020/07/13)

The invention relates to a synthesis method for a tert-butyl 1,2,3-oxathiazolidine-3-carboxylic ester 2,2-dioxide compound. The tert-butyl 1,2,3-oxathiazolidine-3-carboxylic ester 2,2-dioxide compoundhas a structural formula as shown in a formula I which is described in the specification. The synthesis method comprises the step of allowing a compound as shown in a formula II which is described inthe specification with sulfonyl chloride in the presence of an organic solvent to generate the compound as shown in the formula I. The structural formula of the compound as shown in the formula I andthe structural formula of the compound as shown in the formula II are described in the specification. The synthesis method disclosed by the invention is simple to operate; compared with a conventional published two-step method, the synthesis method provided by the invention only needs one step; and the synthesis method is more convenient, reduces byproducts, is high in yield, does not need to usea catalyst and a highly-toxic substance in the reaction, and is safe and low in cost.

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