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Niacinamide PYRIDINE-3-carboxamide CAS 98-92-0

Niacinamide PYRIDINE-3-carboxamide CAS 98-92-0
maximum absorption at the wavelength of 261nm and minimum absorption at the wavelength of 245nm. The ratio of absorbance at the wavelength of 245nm to that at the wavelength of 261nm should be ...

4-ISOPROPYL-3-Methylphenol O-CYMEN-5-ol Supplier CAS 3228-02-2 Jinan Huashihang Chemical Co.,Ltd

4-ISOPROPYL-3-Methylphenol O-CYMEN-5-ol Supplier CAS 3228-02-2 Jinan Huashihang Chemical Co.,Ltd
maximum absorbance at the wavelength at 279+2 nm. Melting point 110~113℃ Clarity of solution dissolve 3.0g sample in 10ml of ethanol; the solution is clear. Heavy metals ...
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