Sigma-Aldrich
四氢呋喃, anhydrous, ≥99.9%, inhibitor-free
Sigma-Aldrich
四氢呋喃, inhibitor-free, suitable for HPLC, ≥99.9%
Sigma-Aldrich
二氯甲烷, anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer
Sigma-Aldrich
四氢呋喃, anhydrous, contains 250 ppm BHT as inhibitor, ≥99.9%
Sigma-Aldrich
二氯甲烷, suitable for HPLC, ≥99.8%, contains amylene as stabilizer
Sigma-Aldrich
二氯甲烷, contains 40-150 ppm amylene as stabilizer, ACS reagent, ≥99.5%
Sigma-Aldrich
1-甲基-2-吡咯烷酮, anhydrous, 99.5%
Sigma-Aldrich
四氢呋喃, contains 250 ppm BHT as inhibitor, ACS reagent, ≥99.0%
Sigma-Aldrich
二氯甲烷, HPLC Plus, for HPLC, GC, and residue analysis, ≥99.9%, contains 50-150 ppm amylene as stabilizer
Sigma-Aldrich
1-甲基-2-吡咯烷酮, ACS reagent, ≥99.0%
Sigma-Aldrich
1-甲基-2-吡咯烷酮, ReagentPlus®, 99%
Sigma-Aldrich
1-甲基-2-吡咯烷酮, suitable for HPLC, ≥99%
Sigma-Aldrich
二氯甲烷, puriss. p.a., ACS reagent, reag. ISO, ≥99.9% (GC)
Supelco
二氯甲烷, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
二氯甲烷, ACS reagent, ≥99.5%, contains 40-150 ppm amylene as stabilizer
Sigma-Aldrich
四氢呋喃, contains 250 ppm BHT as inhibitor, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.9%
Sigma-Aldrich
1-甲基-2-吡咯烷酮, biotech. grade, ≥99.7%
Supelco
二氯甲烷, analytical standard
Sigma-Aldrich
二氯甲烷, puriss., meets analytical specification of Ph. Eur., NF, ≥99% (GC)
Sigma-Aldrich
四氢呋喃, ReagentPlus®, ≥99.0%, contains 250 ppm BHT as inhibitor
Supelco
四氢呋喃, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
四氢呋喃, ACS reagent, ≥99.0%, contains 250 ppm BHT as inhibitor
Sigma-Aldrich
乙醇钽(V), 99.98% trace metals basis
Supelco
四氢呋喃, analytical standard
Sigma-Aldrich
二氯甲烷, ACS reagent, ≥99.5%, contains 40-150 ppm amylene as stabilizer
Supelco
四氢呋喃, Selectophore™, ≥99.5%
Supelco
1-甲基-2-吡咯烷酮, analytical standard
Supelco
二氯甲烷 溶液, certified reference material, 5000 μg/mL in methanol
Supelco
二氯甲烷, Selectophore™, ≥99.5%
Sigma-Aldrich
二氯甲烷, biotech. grade, 99.9%, contains 40-150 ppm amylene as stabilizer