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216443-67-3

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216443-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216443-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,4,4 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 216443-67:
(8*2)+(7*1)+(6*6)+(5*4)+(4*4)+(3*3)+(2*6)+(1*7)=123
123 % 10 = 3
So 216443-67-3 is a valid CAS Registry Number.

216443-67-3Relevant articles and documents

TIME TEMPERATURE INDICATOR BASED ON THIOALKYL AND THIOARYL SUBSTITUTED SPIROAROMATICS

-

, (2011/12/12)

The present invention relates to photochromic spiropyrans as active ingredients of Time-Temperature Indicators (TTIs), and to new spiropyrans per se. More particularly, the invention provides TTIs on the base of photochromic spiropyrans comprising alkylsu

[InCl4]: An efficient catalyst-medium for alkoxymethylation of alcohols and their interconversion to acetates and TMS-ethers

Mohammadpoor-Baltork, Iraj,Moghadam, Majid,Tangestaninejad, Shahram,Mirkhani, Valiollah,Khosropour, Ahmad Reza,Mirjafari, Arsalan

experimental part, p. 568 - 579 (2012/05/05)

A simple, green and chemoselective method for methoxymethylation and ethoxymethylation of primary and secondary alcohols using a Lewis acidic room temperature ionic liquid, [C4mim][InCl4], as catalyst and reaction medium under ambient temperature, microwave and ultrasonic irradiations is reported. In this catalytic system, the corresponding MOM-and EOM-ethers are obtained in excellent yields and in short reaction times. Furthermore, this catalytic system was used for mild and efficient transformations of these protected alcohols to their corresponding acetates and trimethylsilyl ethers under thermal conditions and microwave and ultrasonic irradiations.

Triaromatic compounds and pharmaceutical/cosmetic compositions comprised thereof

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, (2008/06/13)

Novel pharmaceutically/cosmetically-active triaromatic compounds have the structural formula (I): and are useful for the treatment of a wide variety of disease states, whether human or veterinary, for example dermatological, rheumatic, respiratory, cardiovascular, bone and ophthalmological disorders, as well as for the treatment of mammalian skin and hair conditions/disorders.

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