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Chlorosulfuric acid, 2-methylphenyl ester, also known as 2-methylphenyl chlorosulfate, is an organic compound with the chemical formula C7H7ClO3S. It is a colorless to pale yellow liquid that is soluble in organic solvents. This ester is formed by the reaction of chlorosulfuric acid with 2-methylphenol (o-cresol). It is an important intermediate in the synthesis of various chemical compounds, particularly in the production of pharmaceuticals and agrochemicals. Due to its reactivity, it is used as a chlorosulfating agent, which can introduce chlorosulfate groups into organic molecules. The compound should be handled with care, as it is corrosive and can cause severe skin and eye irritation. It is also sensitive to moisture and can decompose upon exposure to water, releasing hazardous gases.

772-07-6

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772-07-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 772-07-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,7 and 2 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 772-07:
(5*7)+(4*7)+(3*2)+(2*0)+(1*7)=76
76 % 10 = 6
So 772-07-6 is a valid CAS Registry Number.

772-07-6Upstream product

772-07-6Relevant academic research and scientific papers

From homogeneous to heterogeneous catalysis of the three-component coupling of oxysulfonyl azides, alkynes, and amines

Yang, Tao,Cui, Hao,Zhang, Changhe,Zhang, Li,Su, Cheng-Yong

, p. 3131 - 3138 (2013/10/21)

A reliable procedure for the synthesis of oxysulfonyl azides has been developed and applied to the three-component coupling reactions of azides, alkynes, and amines catalyzed homogeneously by CuI, which led to the formation of N-oxysulfonyl amidines with

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