925899-21-4 Usage
General Description
Thiophene, 2-bromo-5-(2-ethylhexyl)- is a chemical compound that contains a bromine atom attached to a thiophene ring, which is in turn substituted with a 2-ethylhexyl group. Thiophene is a heterocyclic compound that contains a five-membered ring of four carbon atoms and one sulfur atom. The presence of the bromine atom and the 2-ethylhexyl group make this compound potentially useful in various applications, such as in the synthesis of pharmaceuticals, agrochemicals, and material science. It may also have potential uses in organic electronic devices, such as organic light-emitting diodes (OLEDs) and organic photovoltaic cells. Additionally, it may also be used as a building block in the synthesis of other organic compounds with specific properties and functions. Overall, Thiophene, 2-bromo-5-(2-ethylhexyl)- is a versatile chemical that has potential applications in several different fields.
Check Digit Verification of cas no
The CAS Registry Mumber 925899-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,5,8,9 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 925899-21:
(8*9)+(7*2)+(6*5)+(5*8)+(4*9)+(3*9)+(2*2)+(1*1)=224
224 % 10 = 4
So 925899-21-4 is a valid CAS Registry Number.
925899-21-4Relevant articles and documents
Preparation method of 2-bromo-5-(2-ethylhexyl) thiophene
-
, (2018/05/01)
The invention provides a preparation method of 2-bromo-5-(2-ethylhexyl) thiophene. The preparation method comprises the following steps: 1) mixing thiophene, 2-ethylhexyl acyl chloride and aluminum chloride anhydrous in anhydrous dichloromethane, stirring the mixture at room temperature to react, and then carrying out quenching and post-treatment to obtain 2-(2-ethylhexyl) thiophene; 2) mixing theprepared 2-(2-ethylhexyl) thiophene, hydrazine hydrate, triethylene glycol and sodium hydroxide, heating and stirring the mixture to reflux, after reaction, changing a reflux device into a distillingdevice, adding water, carrying out distillation by water steam, and separating the liquid to obtain 2-(2-ethylhexyl) thiophene; and 3) mixing the prepared 2-(2-ethylhexyl) thiophene, hydrobromic acidand hydrogen peroxide, stirring the mixture at room temperature to react, and separating the liquid to obtain the 2-bromo-5-(2-ethylhexyl) thiophene. The preparation method provided by the inventionis mild in condition, high in yield, relatively easy in post-treatment and suitable for scaled preparation, avoids use of low temperature and dangerous reagents, and is safe and simple to operate.
