N-Methylbenzylamine
Reference standards.
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24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
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Chinese Journal of Chemical Physics, 2004, 17(1):61-64.
Photochemical reactions of Hypocrellin A with dibenzylamine and N-methylbenzylamine.[Reference:
WebLink]
METHODS AND RESULTS:
In order to discuss the free radicals formation me ch anism of Hypocrellin A (HA) with amino derivatives, the electron-spin resonance (ESR) spectroscopy was adopted to study the photochemistry on HA with dibenzyl amine (DBA) and
N-Methylbenzylamine (NMBA), respectively. When HA with DBA or NMBA in chloroform solution was illuminated with visible light, singlet oxygen, semiquinone radical and oxynitride radical were formed depending on the conditi on of the solvent system containing the amino-substituted and solved oxygen. Th e signal intensity of oxynitride radical decreased with increasing the illuminat ion time, and the signal intensity of semiquinone radical increased with increas ing the illumination time. The oxynitride radical content was in inverse ratio w ith the semiquinone radical generated by being irradiated.
CONCLUSIONS:
In the aerobic system of chloroform solution containing DBA/HA, smiquinone radical was the main radic al irradiated. The results indicated that HA induced amino derivatives into HA s emiquinone radical.
