cas

CAS：1369021-80-6 Molecular Formula：C12H12O5 Chemical Properties：Light yellow powder Boiling point ：330.6±42.0 °C(Predicted) density ：1.281±0.06 g/cm3(Predicted)

ProductName: 2-bromo-4-methylpropiophenone CAS No.: 1451-82-7 Boiling Point: 389.4oC at 760 mmHg Melting Point(oC): 149°C Molecular Formular: C15H25ClN2O2 Molecular...

Product Name: 1,3-Benzodioxole-5-acetic acid, α-acetyl-, methyl ester CAS No.: 1369021-80-6 Appearance: Yellow powder

Product Name: Sodium borohydride CAS number: 16940-66-2 Boiling point: 500℃ (decomposition) Density: 1.07g/cm3(20℃) Flash point: 69 °C Not applicable Flash point: 220℃ Melting point: >360℃ (slow decomposition)

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 ?