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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

H3PW12O40at the[bmim][FeCl4]: A green catalytic system for alkoxymethylation of alcohols and their one-pot interconversion to acetates and TMS-ethers

Mohammadpoor-Baltork,Moghadam,Tangestaninejad,Mirkhani,Khosropour,Mirjafari

experimental part, p. 513 - 524 (2012/06/16)

12-Tungstophosphoric acid immobilized on [bmim][FeCl4] was found to be an efficient catalyst for chemoselective methoxymethylation and ethxoymethylation of alcohols and also one-pot conversion of MOM- or EOM-ethers to their corresponding acetates and TMS-ethers under thermal conditions and microwave irradiation. These procedures were simple, rapid and the corresponding products were obtained in high yields. The catalyst exhibited remarkable reactivity and was reusable.

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

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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