Tris(hydroxymethyl)aminomethane (Tris Base, Trometamol, THAM), CAS 77-86-1, white crystalline powder, widely used biological buffer, effective buffering range pH 7.0–9.0, pKa 8.1 at 25℃. TNJ Chemical is the leading supplier and exporter since from 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. Please note that the chemicals are just for legal end-use purpose. To find more, please contact sales@tnjchem.com
Product Information
CAS No.: 77-86-1
EC No.: 201-064-4
Formula: C₄H₁₁NO₃
Molecular Weight: 121.14
Synonyms: Tris Base, Trometamol, THAM, 2-Amino-2-(hydroxymethyl)-1,3-propanediolChemphysical Properties
Appearance: White crystalline powder
Melting point: 171–172 ℃
Solubility: Freely soluble in water
pH (0.1M aqueous): 10.0–11.5
Bulk density: 0.55–0.75 g/cm³
Specification
| Item | Standard |
|---|---|
| Assay (HPLC) | 99.5% min / 99.9% min |
| Loss on drying | 0.30% max |
| Residue on ignition | 0.05% max |
| Heavy metals (Pb) | 5 ppm max |
| Melting range | 168–171 ℃ |
Application
Biochemical & molecular biology buffer for electrophoresis, protein purification, cell culture
Cosmetic raw material, neutralizer for carbomer, pH stabilizerAnalytical reagent, chemical synthesis intermediate
Packaging & Storage
Pack: 25kg drum / 25kg bag
Storage: Sealed, cool dry place, away from light and moisture
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