4.0 M TMAO - 1 ml

- A very versatile cryoprotectant for macromolecular crystals
- Protein stabilizer
- TMAO can be a viable alternative when conventional cryoprotectants fail
- Low viscosity and low surface tension
- Sterile filtered
- Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)

Trimethylamine N-oxide dihydrate (TMAO)

Formulated from TMAO dihydrate in Type 1 lab water (deionized) and sterile filtered (0.22 micron)

Synonyms: TMANO, TMAO
(CH3)3NO•2H2O
C3H9NO•2H2O
Mr 111.14
CAS Number [62637-93-8]
EC Number 214-675-6
Beilstein Registry Number 4(4)144
Merck 14,9711
RTECS YH2850000
Purity ≥ 98.0%

Measured pH range: 9.2 - 10.7 at 25°C
Measured Conductivity Range: 5.6 - 96.6 uS/cm at 25°C
Measured Refractive Index Range: 1.37660 - 1.37804 at 20°C

When using TMAO as a cryoprotectant, try soaking the crystals in 4.0 M TMAO for 10 seconds and then cryo cool directly in the cryo stream.

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