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135388-81-7

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135388-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135388-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,3,8 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 135388-81:
(8*1)+(7*3)+(6*5)+(5*3)+(4*8)+(3*8)+(2*8)+(1*1)=147
147 % 10 = 7
So 135388-81-7 is a valid CAS Registry Number.

135388-81-7Downstream Products

135388-81-7Relevant articles and documents

Cycloaddition of Nitroso Dipolarophiles to Thiazolium-4-olates. Part 1. Nitrosobenzene and 1-Chloro-1-nitrosocyclohexane

Sheradsky, Tuvia,Itzhak, Norbert

, p. 2389 - 2394 (2007/10/02)

Thiazolium-4-olates 1 and nitrosobenzene participated in regiospecific cycloadditions which gave 3-oxa-2,5-diaza-7-thiatrinorbornan-6-ones 5.On storage, compounds 5 rearranged to the azetobenzothiazine S-oxides 7, fragmented to the benzil diimides 8, and a lost sulfur atom to give the iminoimides 9.The cycloadditions of mesoionic compounds 1 with 1-chloro-1-nitrosocyclohexane exhibited a reversed regiochemistry and formed the trinorbornanes 6, which were subsequently attacked by nucleophiles at the bridgehead to produce the thiazolones 14.The mechanisms of formation of all the products are discussed.Structures 7a and 14d were confirmed by single-crystal X-ray analyses.

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