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4351-55-7

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4351-55-7 Usage

General Description

Cholesteryl formate is a chemical compound classified as an ester derived from cholesteryl, which is itself a derivative of cholesterol, and formic acid. Its molecular formula is C28H46O3 and it has a molecular weight of 430.67 g/mol. Cholesteryl formate is primarily used in the production of liquid crystals, a state of matter with properties between those of conventional liquids and those of solid crystals. Furthermore, it can exist in various phases, including solid, smectic, and nematic. Cholesteryl formate is generally a white to off-white crystalline powder that is insoluble in water, but soluble in other solvents like chloroform or methanol. It is important to handle this chemical with care as it can be harmful if swallowed, inhaled, or if it comes into contact with skin.

Check Digit Verification of cas no

The CAS Registry Mumber 4351-55-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,5 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4351-55:
(6*4)+(5*3)+(4*5)+(3*1)+(2*5)+(1*5)=77
77 % 10 = 7
So 4351-55-7 is a valid CAS Registry Number.
InChI:InChI=1/C28H46O2/c1-19(2)7-6-8-20(3)24-11-12-25-23-10-9-21-17-22(30-18-29)13-15-27(21,4)26(23)14-16-28(24,25)5/h9,18-20,22-26H,6-8,10-17H2,1-5H3

4351-55-7Relevant articles and documents

β-oxopropyl formate as a formylating agent of sterols

Kabouche, Ahmed,Kabouche, Zahia

, p. 2127 - 2128 (1999)

Propargylic alcohol reacts with formic acid in the presence of mononuclear catalysts of ruthenium to selectively afford β-oxopropyl formate which has been shown as an excellent mild formylating agent of sterols when the reaction is catalyzed by 1,5-diazabicyclo[4.3.0]non-5-ene (DBN).

Reaction of C2-symmetrical dialkoxysilanes R1O-Si(R2)2-OR1 with the two Vilsmeier-Haack complexes POCl3·DMF and (CF3SO2)2O·DMF: An efficient one-step conversion to the

Cohen,Kotlyar,Koeller,Lellouche

, p. 1543 - 1546 (2001)

The two electrophilic Vilsmeier-Haack complexes POCl3·DMF 1 and (CF3SO2)2O·DMF 2 react with C2-symmetrical dialkoxysilanes R1O-Si(R2)2-OR1 (R1=(-)-menthyl o

Polyvinylpolypyrrolidoniume tribromide as new and metal-free catalyst for the formylation and trimethylsilylation of hydroxyl group

Ghorbani-Choghamarani, Arash,Goudarziafshar, Hamid,Zamani, Parisa

scheme or table, p. 1207 - 1210 (2012/01/05)

Trimethylsilylation of alcohols was achieved using 1,1,1,3,3,3- hexamethyldisilazane (HMDS) as silylating agent, in the presence of polyvinylpolypyrrolidoniume tribromide in acetonitrile at room temperature. Also a variety of alcohols were converted into alkyl formates by ethyl formate and a catalytic amount of polyvinylpolypyrrolidoniume tribromide under solvent free conditions at room temperature.

Highly efficient formylation of alcohols, thiols and aniline derivatives by a heterogeneous (HCOOH/SiO2) system under microwave irradiation and solvent-free conditions

Ghorbani-Vaghei, Ramin,Veisi, Hojat,Amiri, Mostafa,Chegini, Mohammad,Karimi, Mehdi,Dadamahaleh, Somayeh Akbari,Sedrpoushan, Alireza

experimental part, p. 39 - 43 (2010/09/03)

A simple, rapid and efficient microwave-assisted procedure for the formylation of aniline derivatives and alcohols, using a heterogeneous (HCOOH/SiO2) system under solvent-free conditions is reported. The method is applied to a set of amines, alcohols and thiols and short reaction times (10 min) with high yields are reported. This protocol introduces a practical and viable green technology of solvent-free and catalyst-free reactions.

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