Product Number
Brand
Product Description
Sigma-Aldrich
Thiourea, ReagentPlus®, ≥99.0%
Sigma-Aldrich
Thiourea, ACS reagent, ≥99.0%
Sigma-Aldrich
Urea solution, BioUltra, ~8 M in H2O
Supelco
N-Methyl-bis(trifluoroacetamide), for GC derivatization, LiChropur™, ≥99.0% (GC)
Sigma-Aldrich
Urea solution, 40 % (w/v) in H2O
Supelco
N-Methyl-bis(trifluoroacetamide), for GC derivatization, LiChropur™, ≥97.0% (GC)
Sigma-Aldrich
Urea-12C, 99.9 atom % 12C
Millipore
Urea solution, suitable for microbiology, 40% in H2O
Sigma-Aldrich
Sulfuric acid, puriss. p.a., for determination of Hg, ACS reagent, reag. ISO, reag. Ph. Eur., 95.0-97.0%
Sigma-Aldrich
Sulfuric acid, puriss., meets analytical specification of Ph. Eur., BP, 95-97%
Supelco
Sulfuric acid concentrate, 0.1 M H2SO4 in water (0.2N), eluent concentrate for IC
Sigma-Aldrich
Boric acid-11B, ≥99 atom % 11B
Sigma-Aldrich
Sulfuric acid, ACS reagent, 95.0-98.0%
Sigma-Aldrich
Sulfuric acid, 99.999%
Sigma-Aldrich
Methanol solution, NMR reference standard, 4% in methanol-d4 (99.8 atom % D), NMR tube size 3 mm × 8 in.
Sigma-Aldrich
Methanol solution, contains 0.50 % (v/v) triethylamine
Supelco
Dichloromethane solution, certified reference material, 5000 μg/mL in methanol
Sigma-Aldrich
Urea, BioUltra, for molecular biology, 99% (T)
Sigma-Aldrich
Boric acid, 99.999% trace metals basis
Sigma-Aldrich
Boric acid, 99.97% trace metals basis
Sigma-Aldrich
Boric acid, BioUltra, for molecular biology, ≥99.5% (T)
Sigma-Aldrich
Potassium hydride, 30 wt % dispersion in mineral oil
Sigma-Aldrich
Urea, puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%, 99.0-101.0% (calc. on dry substance)
Supelco
Benalaxyl-M, PESTANAL®, analytical standard
Supelco
Urea, 8 M (after reconstitution with 16 mL high purity water)
Urea, European Pharmacopoeia (EP) Reference Standard
Sigma-Aldrich
Boric acid, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., buffer substance, ≥99.8%
Sigma-Aldrich
Urea, Vetec™, reagent grade, 99%
Supelco
Urea, analytical standard
USP
Urea, United States Pharmacopeia (USP) Reference Standard