cas

CAS number: 16940-66-2 Hill molecular formula: H₄BNa Chemical formula: NaBH₄ Molar mass: 37.83 g/mol Boiling point: 500℃ (decomposition) Density: 1.07g/cm3(20℃) Explosion limit: 3.02 %(V) Flash point: 69 °C Not applicable Flash point: 220℃ Melting point: >360℃ (slow decomposition) pH value: 11...

Product Name: 2-BROMO-1-PHENYL-PENTAN-1-ONE Cas NO: 49851-31-2 Molecular Formula: C11H13BrO Boiling Point: 282.267℃ at 760 mmHg Flash Point: 42.513°℃ Aliase: CAS 49851-31-2 high quality 2-BROMO-1-PHENYL-PENTAN-1-ONE 2-bromo-1-phenylpentan-1-one Purity: 99.99%

Product name: 1-(benzo[dl[1.3]dioxole-5-y)-2-bromopropan-1-one CAS number: 52190-28-0 Purity: 99% Usage: pharmaceutical intermediates Molecular formula: C10H9BrO3 Flash point: 162.857 Boiling point: 345.673°C (760 mmHg) Alias: Bromo-3'4'-(methylenedioxy) Appearance: brown powder

Cas NO.:877-37-2 Flash Point133.2℃ Name:2-brom0-4-chloropropiophenone Purity:99% Molecular Formula:C9H8BrCIO usage: Pharmaceutical intermediate Melting Point77-79℃ @ Solvent: Ligroine Boiling Point: 296.7℃ at 760 mmHg Aliase:2-bromo-4-chloropropiophenone...

hello , there are some BMK pouders for sale I think 4 different CAS numbers I was wonder how we know if these CAS nr are still legal or not ? also how do they do it at the border to check if a substance is legal or not . do they just belive the CAS nr that is given on the item ?