ʟ-Gulonic acid γ-lactone 95%

ʟ-Histidine BioUltra, ≥99.5% (NT)

ʟ-Histidine certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

ʟ-Histidine dihydrochloride ≥99.0% (AT)

ʟ-Histidine for biochemistry

ʟ-Histidine hydrochloride solution 100 mM amino acid in 0.1 M HCl, analytical standard

ʟ-Histidine methyl ester dihydrochloride 97%

ʟ-Histidine monohydrochloride monohydrate from non-animal source, meets EP testing specifications, suitable for cell culture, 98.5-101.0%

ʟ-Histidine monohydrochloride monohydrate ≥98% (HPLC)

ʟ-Histidine monohydrochloride monohydrate ≥99.0% (AT)

ʟ-Histidine Pharmaceutical Secondary Standard; Certified Reference Material

ʟ-Histidine ReagentPlus®, ≥99% (TLC)

ʟ-Histidine suitable for cell culture, meets EP, USP testing specifications, from non-animal source

ʟ-Histidine United States Pharmacopeia (USP) Reference Standard

ʟ-Histidinol dihydrochloride ≥98 (TLC)

ʟ-Homoarginine hydrochloride unnatural arginine analog

ʟ-Homocysteic acid ≥95%

ʟ-Homocysteine thiolactone hydrochloride ≥98% (TLC)

ʟ-Homocysteine ≥98.0% (NT)

ʟ-Homocystine ≥98% (HPLC)

ʟ-Iditol ≥98% (GC)

ʟ-Isoleucine 99%, FCC, FG

ʟ-Isoleucine BioUltra, ≥99.5% (NT)

ʟ-Isoleucine from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 98.5-101.0%

ʟ-Isoleucine Pharmaceutical Secondary Standard; Certified Reference Material

ʟ-Isoleucine reagent grade, ≥98% (HPLC)

ʟ-Isoleucine United States Pharmacopeia (USP) Reference Standard

ʟ-Isoleucine-¹⁵N 98 atom % ¹⁵N, 98% (CP)

ʟ-Kynurenine sulfate salt crystalline

ʟ-Kynurenine ≥98% (HPLC)

ʟ-Lactaldehyde solution 1 M in H₂O

ʟ-Lactic Acid Quick Test Strips Sufficient for 10 tests

ʟ-Lactic Dehydrogenase from bovine heart 1000 units/mL

ʟ-Lactic Dehydrogenase from bovine heart Type III, ammonium sulfate suspension, ≥500 units/mg protein

ʟ-Lactic Dehydrogenase from bovine muscle Type X, ammonium sulfate suspension, ≥600 units/mg protein

ʟ-Lactic Dehydrogenase from rabbit muscle Type II, ammonium sulfate suspension, 800-1,200 units/mg protein

ʟ-Lactic Dehydrogenase from rabbit muscle Type XI, lyophilized powder, 600-1,200 units/mg protein

ʟ-Leucine 99%, FG

ʟ-Leucine BioUltra, ≥99.5% (NT)

ʟ-Leucine certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

ʟ-Leucine from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 98.5-101.0%

ʟ-Leucine methyl ester hydrochloride 98%

ʟ-Leucine p-nitroanilide hydrochloride ≥98% (HPLC)

ʟ-Leucine Pharmaceutical Secondary Standard; Certified Reference Material

ʟ-Leucine reagent grade, ≥98% (HPLC)