Sigma-Aldrich
TWEEN ® 20, viscous liquid
Sigma-Aldrich
氯化钠, BioXtra, ≥99.5% (AT)
Sigma-Aldrich
氯化钠, for molecular biology, DNase, RNase, and protease, none detected, ≥99% (titration)
Sigma-Aldrich
尿素, ACS reagent, 99.0-100.5%
Sigma-Aldrich
咪唑, ACS reagent, ≥99% (titration)
Sigma-Aldrich
氯化钠 溶液, 5 M in H2O, BioReagent, for molecular biology, suitable for cell culture
Sigma-Aldrich
尿素, powder, BioReagent, for molecular biology, suitable for cell culture
Sigma-Aldrich
氯化钠 溶液, 0.9% in water, BioXtra, suitable for cell culture
Sigma-Aldrich
ProClin™ 300, pkg of 400 mL, ProClin™ preservative for use in IVD manufacturing, CMIT/MIT 3 %
Sigma-Aldrich
咪唑, ReagentPlus®, 99%
Sigma-Aldrich
氯化钠, meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%
Sigma-Aldrich
氯化钠, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, ≥99%
Sigma-Aldrich
尿素, ReagentPlus®, ≥99.5%, pellets
Sigma-Aldrich
咪唑, for molecular biology, ≥99% (titration)
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
咪唑, puriss. p.a., ≥99.5% (GC)
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)
Supelco
氯化钠, reference material for titrimetry, certified by BAM, ≥99.5%
Supelco
氯化钠, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
咪唑水溶液, BioUltra, 1 M in H2O
Sigma-Aldrich
氯化钠 溶液, BioUltra, for molecular biology, ~5 M in H2O
Sigma-Aldrich
咪唑, BioUltra, ≥99.5% (GC)
Sigma-Aldrich
氯化钠, 99.999% trace metals basis
Sigma-Aldrich
氯化钠, BioUltra, for molecular biology, ≥99.5% (AT)
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%