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

A 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.

MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

同义词: N-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid

391338
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概述

Replacement Information

重要规格表

CAS #Empirical Formula
7365-45-9C₈H₁₈N₂O₄S

Products

产品目录编号包装 数量 / 包装
391338-100GMCN 玻璃瓶 100 gm
391338-1KGCN 玻璃瓶 1 kg
391338-25GMCN 塑胶安瓿;塑胶针药瓶 25 gm
391338-500GMCN 玻璃瓶 500 gm
391338-5KGCN 纤维纸箱 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
References
Product Information
CAS number7365-45-9
FormWhite crystalline powder
Hill FormulaC₈H₁₈N₂O₄S
Chemical formulaC₈H₁₈N₂O₄S
HS Code2933 59 19
PKA7.25 - 7.75 at 20°C
Structure formula ImageStructure formula Image
Quality LevelMQ100
Applications
Biological Information
Purity≥99% by titration (dry basis)
Physicochemical Information
ContaminantsChloride: ≤0.01%; Sodium: ≤0.1%; Sulfate: ≤0.05%
Heavy metals≤1 ppm
Dimensions
Materials Information
Toxicological Information
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.
Product Usage Statements
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.
Packaging Information
Transport Information
Supplemental Information
Specifications
Global Trade Item Number
产品目录编号 GTIN
391338-100GMCN 07790788049805
391338-1KGCN 07790788049812
391338-25GMCN 04055977190168
391338-500GMCN 07790788049829
391338-5KGCN 04055977212419

Documentation

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

职位

物料安全数据表 (MSDS) 

HEPES, Free Acid, ULTROL® Grade - CAS 7365-45-9 - Calbiochem 分析证书

标题批号
391338

小册子

标题
Bulk Product Guide
数据表

Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.

Revision26-October-2009 RFH
SynonymsN-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid
DescriptionA zwitterionic N-substituted aminosulfonic acid buffer. HEPES has its maximum buffering capacity very near the pH of mammalian tissue fluids (pKa of 7.31 at 37°C). Exhibits no metal binding and has a small temperature dependent ΔpKa of -0.014/°C.
FormWhite crystalline powder
CAS number7365-45-9
RTECSTL6809000
Chemical formulaC₈H₁₈N₂O₄S
Structure formulaStructure formula
Purity≥99% by titration (dry basis)
ContaminantsChloride: ≤0.01%; Sodium: ≤0.1%; Sulfate: ≤0.05%
SolubilityH₂O (1 M)
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.
Toxicity Irritant
Merck USA index14, 4654