13243-39-5 Usage
General Description
2-Ethyl-6-nitrobenzoxazole, also known as ENB, is a chemical compound with a molecular formula C9H8N2O3. It is an aromatic heterocyclic compound that contains a benzoxazole ring with an ethyl and nitro substituent. ENB is primarily used as a fluorescent whitening agent in the production of plastics, fibers, coatings, and other materials. It has the ability to absorb and emit light, which makes it useful for brightening and enhancing the appearance of various products. Additionally, ENB has been studied for its potential applications in organic electronics and as a selective fluorescent probe for biomolecules. However, it is important to handle ENB with care as it is considered harmful if ingested or inhaled, and it can cause skin and eye irritation.
Check Digit Verification of cas no
The CAS Registry Mumber 13243-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,4 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13243-39:
(7*1)+(6*3)+(5*2)+(4*4)+(3*3)+(2*3)+(1*9)=75
75 % 10 = 5
So 13243-39-5 is a valid CAS Registry Number.
13243-39-5Relevant articles and documents
Diastereo- and enantioselective Pd(II)-catalyzed additions of 2-alkylazaarenes to N -boc imines and nitroalkenes
Best, Daniel,Kujawa, Szymon,Lam, Hon Wai
supporting information, p. 18193 - 18196 (2013/01/15)
A chiral Pd(II)-bis(oxazoline) complex was found to be highly effective in promoting the first direct diastereo- and enantioselective addition of alkylazaarenes to N-Boc aldimines and nitroalkenes under mild conditions. Deprotection of Boc-protected products proceeded readily to provide amines in high yields.
