Sigma-Aldrich
尿素, ACS reagent, 99.0-100.5%
Sigma-Aldrich
尿素, powder, BioReagent, for molecular biology, suitable for cell culture
Sigma-Aldrich
尿素, ReagentPlus®, ≥99.5%, pellets
Sigma-Aldrich
硫脲, ACS reagent, ≥99.0%
Supelco
尿素, 8 M (after reconstitution with 16 mL high purity water)
Sigma-Aldrich
尿素 溶液, BioUltra, ~8 M in H2O
Sigma-Aldrich
尿素, puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%, 99.0-101.0% (calc. on dry substance)
Sigma-Aldrich
硫脲, ReagentPlus®, ≥99.0%
Sigma-Aldrich
尿素, BioXtra, pH 7.5-9.5 (20 °C, 5 M in H2O)
Sigma-Aldrich
尿素, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%
Sigma-Aldrich
尿素, suitable for electrophoresis
Sigma-Aldrich
尿素, BioUltra, for molecular biology, 99% (T)
USP
尿素, United States Pharmacopeia (USP) Reference Standard
Sigma-Aldrich
尿素 溶液, 40 % (w/v) in H2O
Sigma-Aldrich
尿素, meets USP testing specifications
Supelco
尿素, analytical standard
Millipore
尿素 溶液, suitable for microbiology, 40% in H2O
尿素, European Pharmacopoeia (EP) Reference Standard
Sigma-Aldrich
尿素-12C, 99.9 atom % 12C
Sigma-Aldrich
尿素, Vetec™, reagent grade, 99%