L031100

Activator 42^®

0.25 M

• Synonym(s): 5-[3,5-Bis(trifluoromethyl)phenyl]-1H-tetrazole Solution, 5-[3,5-Bis(trifluoromethyl)phenyl]-2H-tetrazole Solution, Activator 42^® Solution
• CAS Number: 175205-09-1
• UNSPSC Code: 41106305
• NACRES: NA.21

Properties

• Quality Level: 200
• type: for DNA synthesis
• product line: Proligo Reagents
• form: liquid
• storage condition: dry at room temperature
• concentration: 70-77 g/L (Activator 42 content, titration)
• impurities: ≤30 ppm water content (Karl Fischer)
• color: clear
• InChI: 1S/C9H4F6N4/c10-8(11,12)5-1-4(7-16-18-19-17-7)2-6(3-5)9(13,14)15/h1-3H,(H,16,17,18,19)
• InChI key: KKJFZIQEWZVVIV-UHFFFAOYSA-N

Description

Preparation Note

Acetronitrile / Activator 42 100 / 7 (v/w)

Other Notes

Activator solution, containing 5-(3,5-bis(trifluoromethyl)phenyl)-1H-tetrazole (Activator 42) in acetonitrile, are mixed with solutions of phosphoramidites during the extension step.
The activator reacts with the amidite group to form a highly reactive intermediate. The intermediate then forms an internucleotide bond with the detritylated 5′hydroxyl group of the growing oligonucleotide chain.

Legal Information

This product and it use is are covered under US Patent Number 7,897,758

Activator 42 is a registered trademark of Sigma-Aldrich Co. LLC

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H225,H302 + H312 + H332,H315,H319
• Precautionary Statements: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 41.0 °F
• Flash Point(C): 5 °C