TRIS Acetate -- CAS No: 6850-28-8
| CAS Registry Number |
6850-28-8 |
| Name |
TRIS Acetate |
| Synonyms |
TRIS acetate salt, Tris(hydroxymethyl)aminomethane acetate salt |
| Molecular Formula |
NH2C(CH2OH)3 • CH3COOH |
| Molecular Weight |
181.19 |
| Molecular Structure |
|
| Test |
T5533, Ultra Pure |
T5535, Ultra BioPure |
| Appearance |
White powder |
White powder |
| Assay (by titration, on dried basis) |
≥ 98.0% |
≥ 98.0% |
| Solubility (1% solution in H2O) |
Clear, complete and colorless |
Clear, complete and colorless |
| Identification (by IR) |
Conforms to structure |
Conforms to structure |
| Loss on Drying (105°C for 3 hours) |
≤ 1.0% |
≤ 1.0% |
| pH (1% solution in water) |
6.0 – 7.0 |
6.0 – 7.0 |
| pKa (@ 25ºC) |
-- |
-- |
| UV Absorption (0.5M @280nm) |
≤ 0.05 |
≤ 0.05 |
| UV Absorption (0.5M @260nm) |
≤ 0.1 |
≤ 0.1 |
| UV Absorption (0.5M @250nm) |
≤ 0.3 |
≤ 0.3 |
| Residue on Ignition |
≤ 0.05% |
≤ 0.05% |
| Heavy Metals (Lead) |
≤ 0.0005% |
≤ 0.0005% |
| Biological Impurity Testing |
| Test |
T5533, Ultra Pure |
T5535, Ultra BioPure |
| Endotoxin (0.1% solution in H2O) |
-- |
≤ 0.1 EU/mL |
| Bioburden |
-- |
≤ 100 CFU/g |
| Trace Impurity Testing |
| Test |
T5533, Ultra Pure |
T5535, Ultra BioPure |
| Chloride (Cl) |
≤ 0.005% |
≤ 0.005% |
| Iron (Fe) |
≤ 0.0005% |
≤ 0.0005% |
| Sulfate (SO4) |
≤ 0.005% |
≤ 0.005% |
| Specification Sheet |
| Specification Sheet |
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