This is a specially denatured alcohol formula 40B, which contains trace amounts (less than 0.125% combined) of the denaturants tert-butyl alcohol and denatonium benzoate, and up to 5% water, compliant with United States Title 27 of the Code of Federal Regulations, Section 21.151. SDA-40B denatured ethanol is a popular choice for cosmetic applications because studies have shown low toxicity in topical applications.At Lab Alley, we understand that high quality reagents are essential to the integrity of your laboratory and manufacturing projects. That’s why we believe you deserve to have full confidence in the quality of your reagents. Lab Alley provides high quality, reliable SDA-40B ethanol, ideal for your laboratory and manufacturing needs.