PR1MA™  MES Monohydrate [2-(N-Morpholino)-ethanesulfonic acid]

Common Name: 2-(N-Morpholino)ethanesulfonic acid
CAS Number: 145224-94-8
Molecular Weight: 213.24
Chemical Formula: C₆H₁₃NO₄S • H ₂O
Solubility: Water
Storage Temp: Room Temperature

Buffer for use in plant tissue culture.

• pKa (20°C): 6.15
• pH range: 5.5 - 6.7

Research or further manufacturing use only, not for food or drug use.

• Appearance: White crystalline powder
• Assay (Titration): ≥ 99.0 %
• Heavy Metals: ≤ 0.0010 %
• Loss on Drying: 7.0 - 10.0 %
• pH: 2.5 - 4.0
• pKa @20 ^oC: 6.02 - 6.25
• Solubility (10% solution in H₂O): Clear
• Sulfate: ≤ 0.01 %
• UV Absorbance 250nm in 10% H₂O: ≤ 0.05
• Country of Origin: Report

PR1MA™  MOPS [3-(N-morpholino)-propanesulfonic acid]

Common Name: 3-(N-Morpholino)propanesulfonic acid
CAS Number: 1132-61-2
Molecular Weight: 209.3
Chemical Formula: C₇H₁₅NO₄S
Solubility: Water
Storage Temp: Room Temperature

Molecular Biology Grade

• Heavy Metals: <5 ppm
• pKa: (20°C) 7.20 ± 0.2
• pH Range: 6.5-7.9

• Appearance: White crystalline powder
• Absorbance @250nm, 1M solution in H₂O: ≤ 0.1
• Absorbance 260nm: ≤ 0.2 nm
• Absorbance 280nm: ≤ 0.2
• Assay (Titration): ≥ 99.0 %
• Endotoxin : ≤ 0.5 EU/mg
• Heavy Metals: ≤ 5 ppm
• Identification: Matches the reference
• Iron (Fe): ≤ 5 ppm
• Loss on Drying (105 ^oC): ≤ 1.0 %
• Melting Point: 276.0 - 281.0 ^oC
• pH: 2.5 - 5.0
• pKa @ 20°C: 7.0 - 7.4
• Residue on Ignition: ≤ 0.2 %
• Solubility: Clear, colorless solution