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Merck - 243005-25GM - L-Cysteine, Free Base (Cys) | CAS 52-90-4 | Calbiochem | 25GM

  • MFR SKU: 243005-25GM
  • ITEM #: 5842745
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ITEM #: 5842745
L-Cysteine, Free Base^ 25gm. Cys. Packaged under inert gas. Naturally-occurring non-essential amino acid. Purity:>99% by titration (perchloric acid). Contaminants: other amino acids:

Merck - 243005-25GM - L-Cysteine, Free Base (Cys) | CAS 52-90-4 | Calbiochem | 25GM

  • Item #: 5842745
  • MFR SKU: 243005-25GM
  • Overview Naturally-occurring non-essential amino acid.
  • Catalogue Number 243005
  • Brand Family Calbiochem®
  • Synonyms Cys
  • CAS number 52-90-4
  • Form White solid
  • Hill Formula CHNOS
  • Chemical formula CHNOS
  • Optical rotation Optical rotation: +8° to +9° (c = 5, 1 N HCl, 20° C).
  • Quality Level MQ100
  • Purity ≥ 98% by titration (perchloric acid)
  • Contaminants Iron: ≤ 10 ppm
  • Endotoxin: ≤ 24 EU/g
  • Total microorganisms: ≤ 100 CFU/g
  • Heavy metals ≤ 0.001% (as Pb)
  • RTECS HA1600000
  • R Phrase R: 22;
  • Ship Code Ambient Temperature Only
  • Toxicity Harmful
  • Storage +15° C to +30° C
  • Do not freeze Ok to freeze
  • Special Instructions Aqueous stock solutions are stable for up to 24 h at -20° C. Acidic stock solutions, when aliquoted and stored at -20° C, are stable for up to 1 month.
  • Packaged under inert gas Packaged under inert gas

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