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391338 HEPES, Free Acid, ULTROL® Grade - CAS 7365-45-9 - Calbiochem

391338
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Tabella delle specifiche principali

CAS #Empirical Formula
7365-45-9C₈H₁₈N₂O₄S

Products

Numero di catalogoConfezionamento Qtà/conf
391338-100GM Bottiglia di vetro 100 gm
391338-1KG Bottiglia di vetro 1 kg
391338-25GM Fiala di plastica 25 gm
391338-500GM Bottiglia di vetro 500 gm
391338-5KG Carton fibra 5 kg
Description
OverviewA zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.48 at 25°C.
Absorbance (1.0 M, H2O, 260 nm):≤0.05.
Absorbance (1.0 M, H2O, 280 nm): ≤0.04
Catalogue Number391338
Brand Family Calbiochem®
SynonymsN-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid
Product Information
CAS number7365-45-9
FormWhite crystalline powder
Hill FormulaC₈H₁₈N₂O₄S
Chemical formulaC₈H₁₈N₂O₄S
PKA7.25 - 7.75 at 20°C
Structure formula ImageStructure formula Image
Quality LevelMQ100
Biological Information
Purity≥99% by titration (dry basis)
Physicochemical Information
ContaminantsChloride: ≤0.01%; Sodium: ≤0.1%; Sulfate: ≤0.05%
Heavy metals≤1 ppm
Safety Information according to GHS
RTECSTL6809000
Safety Information
R PhraseR: 36/37/38

Irritating to eyes, respiratory system and skin.
S PhraseS: 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.
Storage and Shipping Information
Ship Code Ambient Temperature Only
Toxicity Irritant
Storage +15°C to +30°C
Do not freeze Ok to freeze
Special InstructionsFollowing reconstitution, store at room temperature (20°C). Stock solutions are stable for up to 6 months at 20°C.
Global Trade Item Number
Numero di catalogo GTIN
391338-100GM 07790788049805
391338-1KG 07790788049812
391338-25GM 04055977190168
391338-500GM 07790788049829
391338-5KG 04055977212419