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138073-04-8

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138073-04-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138073-04-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,0,7 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138073-04:
(8*1)+(7*3)+(6*8)+(5*0)+(4*7)+(3*3)+(2*0)+(1*4)=118
118 % 10 = 8
So 138073-04-8 is a valid CAS Registry Number.

138073-04-8Downstream Products

138073-04-8Relevant articles and documents

Adducts of tin(IV) chloride with arylazophenol and naphthol series

Baul, T. S. Basu

, p. 454 - 456 (2007/10/02)

Reaction of SnCl4 with arylazophenols and naphthols in anhydrous benzene afforded solid 1:1 adducts in each case.The products were deep coloured solids with minimal solubilities in most unreactive solvents.Investigations of the adducts by IR, 1H NMR, electronic spectra and conductance measurements indicated that their structures involved coordination of the azo-nitrogen and phenolic oxygen to the tin atom. Keywords: tin(IV) chloride, arylazophenol, arylazonaphthol, UV, IR, 1H NMR spectroscopies

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