Page 50 - Catalogue 2015

A(Bz)-OTBDMS-CE Phosphoramidite

CÂÀHÃÃNÎOÏPSi; M 988.21;

Cat. No. A(Bz)-OTBDMS-CE Phosphoramidite
182124 DNA synthesis

Appearance White to off white powder
Assay (HPLC) min. 98%
Water max. 0.4%
Solubility (0.1M in ACN) Complete, clear

Aces free acid

Synonym: N-(2-Acetamido)-2-aminoethanesulfonic acid, N-(Carbamoylmethyl)-2-aminoethanesulfonic acid, N-
(Carbamoylmethyl)taurine

CAS [7365-82-4]; EC 230-908-4; CÁHÌÍN¿OÁS; M 182.19

Cat. No. Aces free acid
010223
Molecular biology
Application:
ACES is a buffering substance useful at pH range 6.1 - 7.5. pKa = 6.78 at 25°C. Commonly used as
an elution buffer in the chromatographic purification of proteins.

Solubility (2% in Water) Clear colorless solution DNase activity Not detected
Heavy metals (as Pb) max. 0.0005% RNase activity Not detected
Assay (T) min. 99%w/w Protease activity Not detected
A260nm (2%) max. 0.05AU

Acetic acid glacial

Synonym: Glacial acetic acid

CAS [64-19-7]; EC 200-580-7; C¿HÁO¿; M 60.04

D 1.048; m.p. 16.5 °C; b.p. 117-118 °C; UN 2789,8+3,II,CF1

Danger H:226-314; P:210-303+361+353-305+351+338-310-405-501

Cat. No. Acetic acid glacial
010741 ULC/MS - CC/SFC

Appearance Clear colorless liquid Grad. elution drift at 254nm max. 0.005AU
F254nm (0.1%, as Quinine) max. 0.5ppb
Assay (GC, on anhydrous basis) min. 99.95% F365nm (0.1%, as Quinine) max. 0.5ppb
Al (Aluminum) max. 10ppb
Residue after evaporation max. 0.0005%w/w Ca (Calcium) max. 50ppb
Fe (Iron) max. 20ppb
Water (KF) max. 0.05%w/w K (Potassium) max. 20ppb
Mg (Magnesium) max. 10ppb
Subs. reducing Dichromate Passes test Na (Sodium) max. 50ppb
Pb (lead) max. 20ppb
Subs. reducing KMnO4 Passes test

T254nm min. 30%

T260nm min. 80%

T265nm min. 95%

T275nm min. 98%

MS-ESI+ (0.1%, as Reserpine) max. 25ppb

Grad. elution H.Peak at 254nm max. 0.002AU

Filtered through 0.1µm, filled under inert gas.