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Merck - 391338-5KG - HEPES Buffer Solution, ULTROL Grade | CAS 7365-45-9 | Calbiochem | 5KG

  • MFR SKU: 391338-5KG
  • ITEM #: 3442101
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ITEM #: 3442101
HEPES, Free Acid, ULTROL Grade^ (N-2-Hydroxyethylpiperazine-N'' -2-ethanesulfonic acid). White solid. A zwitterionic N-substituted aminosulfonic acid buffer. Active in the pH range of 6.0 to 8.5. Purity: >= 99.5% by titration (dry basis).
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Merck - 391338-5KG - HEPES Buffer Solution, ULTROL Grade | CAS 7365-45-9 | Calbiochem | 5KG

  • Item #: 3442101
  • MFR SKU: 391338-5KG
  • Overview A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pK a of 7.48 at 25° C.
  • Absorbance (1.0 M, H 2 O, 260 nm):≤ 0.05.
  • Absorbance (1.0 M, H 2 O, 280 nm): ≤ 0.04
  • Catalogue Number 391338
  • Brand Family Calbiochem®
  • Synonyms N-2-Hydroxyethylpiperazine-N-2-ethanesulfonic Acid
  • CAS number 7365-45-9
  • Form White crystalline powder
  • Hill Formula CHNOS
  • Chemical formula CHNOS
  • PKA 7.25 - 7.75 at 20° C
  • Structure formula Image
  • Quality Level MQ100
  • Purity ≥ 99% by titration (dry basis)
  • Contaminants Chloride: ≤ 0.01%; Sodium: ≤ 0.1%; Sulfate: ≤ 0.05%
  • Heavy metals ≤ 1 ppm
  • RTECS TL6809000
  • R Phrase R: 36/37/38
  • Irritating to eyes, respiratory system and skin.
  • S Phrase S: 26-37/39
  • In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
  • Wear suitable gloves and eye/face protection.
  • Ship Code Ambient Temperature Only
  • Toxicity Irritant
  • Storage +15° C to +30° C
  • Do not freeze Ok to freeze
  • Special Instructions Following reconstitution, store at room temperature (20° C). Stock solutions are stable for up to 6 months at 20° C.

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