04-L10536000AL - 44-benzidine-10-gml-in-acetonitrile | 92-87-5

Applications Acetonitrile is used as a polar aprotic solvent in organic synthesis.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Hu, H.H., et al.: Phy. Chem. Phys., 15, 7666 (2013); Kim, J.Y., et al.: J. Mater. Chem. A., et al.: 1, 5982 (2013);

Assay (by GC) Min 99.9 %
Water (KF) Max 0.01 %
absorbance at 195 nm Max 0.097
absorbance at 200 nm Max 0.022
absorbance at 230 nm Max 0.004
propionitrile (GC) Max. 0.2 %
non-volatile matter Max. 0.0002 %
free acid (as CH3COOH) Max. 0.001 %
free alkali (as NH3) Max. 0.0001 %
HPLC-gradient at 210 nm Max. 1 mAU
HPLC-gradient at 254 nm Max. 0.2 mAU
baseline drift at 210 nm Max. 12 mAU
fluorescence (chinin) at 254 nm Max. 0.5 ppb
fluorescence (chinin) at 365 nm Max. 0.5 ppb
suitability for the LC-MS complying

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

1-Propylphosphonic acid cyclic anhydride is used as a reagent for amide/peptide bond formation. It is utilized for condensation reactions and alcohol oxidations. It is also used to promote the synthesis of hydroxamic acids from carboxylic acids. Further, it is employed as an efficient promoter for t

Coupling reagent for preparation of polynucleotides

Assay (by GC) Min 99.9 %
Water (by KF) Max 0.02 %
Non-volatile matter Max.0.0005 %
Free acid (asCH3COOH) Max.0.001 %
Free alkali (asNH3) Max.0.0002 %
Absorbance at :
at 400nm Max 0.0044
at 250nm Max 0.0044
at 235nm Max 0.0044
at 230nm Max 0.0044
at 200nm Max 0.032
at 195nm Max 0.12
HPLC Gradient at 210nm Max 3 m AU
HPLC Gradient at 254nm Max 0.5 m AU
Baselinedrift at 210nm Max 15 m AU
Filtration (0.2 um) Passes test