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Acetaldehyde, (7-chloro-2,2-dioxido-4H-1,3,2-benzodioxathiin-4-ylidene)-, (2,4-dinitrophenyl)hydrazone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138469-91-7

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138469-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138469-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,6 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138469-91:
(8*1)+(7*3)+(6*8)+(5*4)+(4*6)+(3*9)+(2*9)+(1*1)=167
167 % 10 = 7
So 138469-91-7 is a valid CAS Registry Number.

138469-91-7Downstream Products

138469-91-7Relevant academic research and scientific papers

1,3,2-benzodioxathiines from aromatic enaminones

Lowe,Braden

, p. 949 - 951 (1991)

The hitherto unknown 1,3,2-benzodioxathiines 5, 6 were synthesized from the enaminones 1, 2 by reaction with chlorosulfuric acid or oleum. From the compounds 5, 6 the oximes 7, 8, the oxime esters 11, 12, the 2,4-dinitrophenylhydrazones 13, 14, and the al

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