Grade: ULTRA PURE CAS Number: 77-86-1 Synonym(s): tris base; trizma; trizma base; 2-Amino-2-(hydroxymethyl)-1,3-propanediol; Tris(hydroxymethyl)aminomethane; Tris(hydroxymethyl)methylamine; THAM Molecular Formula: C4H11NO3 Molecular Weight: 121.14 g/mol Storage Condition: Room temperature Specification Result Appearance White crystalline Purity(By Titration 0.1 N HCL / Dried basis) 99.9% Melting Point (°C) 168.6-171.7 Moisture(By Karl Fischer) 0.12% pH (5.0% aqueous ) 10.7 Solubility (40% aqueous) Clear, colorless solution Ultraviolet Absorbance (40% aqueous) A (280 nm): 0.026A (260 nm): 0.002 Insoluble Matter in water ≤0.005%, Pass Ignition Residue 0.018% Fe ≤1ppm, Pass Heavy Metal ≤2ppm, Pass Chloride ≤1ppm, Pass Safety Data Sheet MSDS

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Grade: ULTRA PURE CAS Number: 77-86-1 Synonym(s): tris base; trizma; trizma base; 2-Amino-2-(hydroxymethyl)-1,3-propanediol; Tris(hydroxymethyl)aminomethane; Tris(hydroxymethyl)methylamine; THAM Molecular Formula: C4H11NO3 Molecular Weight: 121.14 g/mol Storage Condition: Room temperature Specification Result Appearance White crystalline Purity(By Titration 0.1 N HCL / Dried basis) 99.9% Melting Point (°C) 168.6-171.7 Moisture(By Karl Fischer) 0.12% pH (5.0% aqueous ) 10.7 Solubility (40% aqueous) Clear, colorless solution Ultraviolet Absorbance (40% aqueous) A (280 nm): 0.026A (260 nm): 0.002 Insoluble Matter in water ≤0.005%, Pass Ignition Residue 0.018% Fe ≤1ppm, Pass Heavy Metal ≤2ppm, Pass Chloride ≤1ppm, Pass Safety Data Sheet MSDS

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Grade: ULTRA PURE CAS Number: 77-86-1 Synonym(s): tris base; trizma; trizma base; 2-Amino-2-(hydroxymethyl)-1,3-propanediol; Tris(hydroxymethyl)aminomethane; Tris(hydroxymethyl)methylamine; THAM Molecular Formula: C4H11NO3 Molecular Weight: 121.14 g/mol Storage Condition: Room temperature Specification Result Appearance White crystalline Purity(By Titration 0.1 N HCL / Dried basis) 99.9% Melting Point (°C) 168.6-171.7 Moisture(By Karl Fischer) 0.12% pH (5.0% aqueous ) 10.7 Solubility (40% aqueous) Clear, colorless solution Ultraviolet Absorbance (40% aqueous) A (280 nm): 0.026A (260 nm): 0.002 Insoluble Matter in water ≤0.005%, Pass Ignition Residue 0.018% Fe ≤1ppm, Pass Heavy Metal ≤2ppm, Pass Chloride ≤1ppm, Pass Safety Data Sheet MSDS

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Grade: ULTRA PURE CAS Number: 77-86-1 Synonym(s): tris base; trizma; trizma base; 2-Amino-2-(hydroxymethyl)-1,3-propanediol; Tris(hydroxymethyl)aminomethane; Tris(hydroxymethyl)methylamine; THAM Molecular Formula: C4H11NO3 Molecular Weight: 121.14 g/mol Storage Condition: Room temperature Specification Result Appearance White crystalline Purity(By Titration 0.1 N HCL / Dried basis) 99.9% Melting Point (°C) 168.6-171.7 Moisture(By Karl Fischer) 0.12% pH (5.0% aqueous ) 10.7 Solubility (40% aqueous) Clear, colorless solution Ultraviolet Absorbance (40% aqueous) A (280 nm): 0.026A (260 nm): 0.002 Insoluble Matter in water ≤0.005%, Pass Ignition Residue 0.018% Fe ≤1ppm, Pass Heavy Metal ≤2ppm, Pass Chloride ≤1ppm, Pass Safety Data Sheet MSDS

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Grade: ULTRA PURE CAS Number: 77-86-1 Synonym(s): tris base; trizma; trizma base; 2-Amino-2-(hydroxymethyl)-1,3-propanediol; Tris(hydroxymethyl)aminomethane; Tris(hydroxymethyl)methylamine; THAM Molecular Formula: C4H11NO3 Molecular Weight: 121.14 g/mol Storage Condition: Room temperature Specification Result Appearance White crystalline Purity(By Titration 0.1 N HCL / Dried basis) 99.9% Melting Point (°C) 168.6-171.7 Moisture(By Karl Fischer) 0.12% pH (5.0% aqueous ) 10.7 Solubility (40% aqueous) Clear, colorless solution Ultraviolet Absorbance (40% aqueous) A (280 nm): 0.026A (260 nm): 0.002 Insoluble Matter in water ≤0.005%, Pass Ignition Residue 0.018% Fe ≤1ppm, Pass Heavy Metal ≤2ppm, Pass Chloride ≤1ppm, Pass Safety Data Sheet MSDS

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