Page 81 - Catalogue 2015

Ammonium sulfate

CAS [7783-20-2]; EC 231-984-1; HÏN¿OÁS; M 132.13

Warning; H:315-319-335; P:261-280-305+351+338-321

Cat. No. Ammonium sulfate
012305 AR

Appearance White to off-white solid Iron (Fe) max. 0.0005%
Assay (T) min. 99.5%w/w Nitrate (NO3) max. 0.001%
pH (5% in water) 5.0-6.0 Phosphate (PO4) max. 0.0005%
Chloride (Cl) max. 0.0005% Residue after ignition max. 0.005%
Heavy metals (as Pb) max. 0.0005%

Cat. No. Ammonium sulfate
012323
Molecular biology
Application:
Commonly used for the purification of proteins and antibodies. Useful for conjugation of enzymes to
antibodies, and for crystallographic analysis of nucleic acids and proteins.

Appearance White crystalline powder Assay (T) min. 99%w/w
Iron (Fe) max. 0.0005% DNase activity Not detected
Water insolubles max. 0.005% RNase activity Not detected
Heavy metals (as Pb) max. 0.0005% Protease activity Not detected
pH (5% in water) 5-6

Cat. No. Ammonium sulfate
012302 CP

Appearance White crystalline powder
pH (5% in water) 4.5-6.0
Residue after ignition max. 0.1%
Assay (T) min. 99%w/w

Iso-Amyl alcohol

Synonym: 3-Methyl-1-butanol, Isopentyl alcohol

CAS [123-51-3]; EC 204-633-5; CÂHÌ¿O; M 88.15

D 0.81; m.p. -117 °C; b.p. 130 °C; UN 1105,3,III,F1

Warning; H:226-332-335; EUH:066; P:210-241-261-280-303+361+353

Cat. No. Iso-Amyl alcohol
090205 AR

Assay (GC, on anhydrous basis) min. 99% Acidity (as Acetic acid) max. 0.003%
Color (APHA) max. 10 Residue after evaporation max. 0.002%w/w
Acids & Esters max. 0.2% Water (KF) max. 0.5%w/w

Cat. No. Iso-Amyl alcohol max. 0.5%w/w
090223 Molecular biology max. 0.00001%
Not detected
Application: Commonly used as co-solvent in nucleic acid isolation and purification. Not detected
Not detected
Acidity (as Acetic acid) max. 0.003% Water (KF)
Color (APHA) max. 10 Zinc (Zn)
Assay (GC, on anhydrous basis) min. 99% DNase activity
Heavy metals (as Pb) max. 0.00001% RNase activity
Residue after evaporation max. 0.002%w/w Protease activity