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Tris-(hydroxymethyl)-aminomethane, molecular biology grade

- Synonyms: 2-Amino-2-(hydroxymethyl)-1,3-propanediol, Tromethamine, THAM, TRIS buffer
- C4H11NO3
- M = 121,14 g/mol
- CAS [77-86-1]
- EINECS-No.: 201-064-4
- Solub. in water: (20 ºC): 800 g/l
- Melting point: 172 - 173 ºC
- Boiling point: (13,3 hPa) 219 - 220 ºC
- LD 50 (oral, rat): 5900 mg/kg
- GHS-signal word: Warning
- GHS-H sentences: H315 - H319
- GHS-P sentences: P280 - P264 - P305+P351+P338 - P321 - P332+P313 - P337+P313
- Tariff number: 2922 19 00
- Applications: analytical chemistry, in buffer solutions, in biochemistry, laboratory reagent, in the pharmaceutics industry, emulsifier (cosmetics), for the synthesis of: tensoactives.

SPECIFICATIONS
assay (acidimetric, on dried sample): min. 99 %

10 % in a 1 cm cell at 260 nm : max. 0,03 AU

10 % in a 1 cm cell at 280 nm : max. 0,02 AU
heavy metals (as Pb): max. 2 ppm
water (K.F.): max. 0,3 %
DNases, RNases, Proteases : non detected