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BioBuffer Solution Brand Product
Quality Management System Manufactured

ISO Certified

Tris (Tromethamine)

USP, EP, ChP, JPC

Product Code: TRIS-6202

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Product Code: TRIS-6202
Suitable for use in biological and biotech chemical process applications from R&D through scale cGMP production.

Tromethamine (Tris) is commonly used as a buffer and excipient in downstream biological applications during the manufacture of drug products. Tris is considered a Good's buffer because it has low UV absorptivity, minimal reactivity, stable pH and is soluble in water.

CAS #: 77-86-1
Formula: NH2C(CH2OH)3
F.W.: 121.14 g/mol

Product Specifications

Analysis Specifications
Appearance of Solution (EP)  
Passes Test
Assay, Dried basis (USP/EP/ChP/JPC)  
99.0 - 100.5%
Chloride (ChP/EP) < = 100 ppm 
Clarity and Color of Solution (ChP/JPC) Passes Test
Heavy Metals (Pb) (ChP/JPC) < = 8 ppm
Identification, IR (USP-A/ChP-3/EP-C) Conforms to Reference Standard
Identification A (EP), Alkalinity (ChP), pH (5%) (USP/EP) 10.0 - 11.5
Identification A (JPC) Passes Test
Identification B (USP/ChP-1) Passes Test
Identification B (EP), Melting Range (USP/ChP/JPC) 168 - 172°C
Identification B (JPC) Passes Test
Identification C (USP) Passes Test
Identification D (EP/ChP-2) Conforms to Reference Standard
Loss on Drying (USP/ChP/EP/JPC) < = 0.5%
pH (1 in 100) (JPC) 10.3 - 10.7
Related Substances (ChP/EP) < = 1.0%
Residue on Ignition/Sulfated Ash (USP/ChP/EP/JPC) < = 0.1%
Trace Metals

Arsenic (As) (JPC)

Iron (Fe) (ChP/EP)

Nickel (Ni) (ChP)

< = 1.6 ppm

< = 10 ppm

< = 15 ppm

Key Product Features:

  • Appears as a white crystalline powder
  • GMP manufactured in accordance with the QMS
  • Manufactured in an enzyme free, hormone free and animal free environment 
  • Contains no major food allergens (as defined by FDA and WHO)
  • The final product and its raw materials are not derived from nor come into contact with animal parts, animal products, and/or animal byproducts or derivatives. 
  • Is not subject to genetic modification
  • Synonyms: Trometamol; THAM; Tris (Hydroxyethyl) Aminomethane; Trisaminol; Trismethylolaminomethane; 2-Amino-2(Hydroxymethyl) propane-1,2-diol; Tromethamine

Shelf-Life Policy:

Please inquire for information regarding shelf life.

Storage & Shipping:

Refer to SDS.

Package Sizes:

1kg, 5kg, 10kg, 25kg, and 50kg

Bulk GMP Fine Chemicals exclusively manufactured in North America

American Manufactured - FDA Registered GMP Facilities: Parenteral Excipients, GMP Small Molecule Intermediates, GMP Biological Buffers, Parenteral Carbohydrates, GMP Chlorinated Amino Acids, GMP Solutions in Sterile Single Use Packaging and other Reagent & GMP Fine Chemicals.