95193
Cap A (acetic anhydride 10% in THF/lutidine 8 : 1)
suitable for DNA synthesis
Synonym(s):
Acetic anhydride solution
SMILES string
CC(=O)OC(C)=O
technique(s)
DNA synthesis: suitable
impurities
≤0.005% water
density
0.911 g/mL at 20 °C
Application
Reagent used in the phosphite triester method of oligonucleotide synthesis for the capping of the remaining free 5′-hydroxyl groups by acetylation. Reagent is suitable for use on ABI, Beckman synthesizers.
Preparation Note
filtered with a 0.1 μm filter
signalword
Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
supp_hazards
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
1.4 °F - closed cup
flash_point_c
-17.0 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Regulatory Information
危险化学品
易制毒化学品（2类）
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Chunyan Hu et al.
Journal of agricultural and food chemistry, 59(19), 10517-10523 (2011-09-03)
Poultry feathers are renewable resources, inexpensive and abundantly available, but have limited applications. Although keratin extracted from feathers has been chemically modified, there are no reports on the chemical modification or development of thermoplastics from poultry feathers. Acetylation is an
Manuel Weber et al.
The Journal of organic chemistry, 77(23), 10846-10855 (2012-12-01)
A multicomponent reaction is reported generating highly enantioenriched and diastereomerically pure quaternary amino acid derivatives via 1,4-addition of azlactones to enones. The azlactone intermediates are generated in situ from unprotected α-amino acids and acetic anhydride. Previous attempts using bis-palladacycle catalysts
In-Taek Hwang et al.
Molecules (Basel, Switzerland), 16(8), 6313-6321 (2011-07-28)
An efficient synthesis of 4-arylcoumarins has been accomplished via Kostanecki reactions of 2-hydroxybenzophenones with acetic anhydride employing DBU at ambient temperature. Using the same strategy, several 2-acyloxybenzophenone derivatives were readily converted to 3,4-difunctionalized coumarins. This protocol offers a notable improvement
Rie Ito et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 879(31), 3714-3720 (2011-11-01)
A simple, rapid and sensitive method termed dispersive liquid-liquid microextraction (DLLME) combined with gas chromatography-mass spectrometry (GC/MS) was developed for the determination of tricyclic antidepressants (TCAs) in human urine sample. An appropriate mixture of methanol (disperser solvent), carbon tetrachloride (extraction
V Chiaradia et al.
Applied biochemistry and biotechnology, 168(4), 742-751 (2012-08-07)
Enzymatic esterification of eugenol is a matter of great scientific and technological interest due to the well-known drawbacks of the chemical-catalyzed route as well as the potential use of produced compounds as natural antimicrobials. This work reports the maximization of
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