(Diethylamino)sulfur trifluoride , 90% , 38078-09-0

Synonym(s):
DAST;DAST solution in dichloromethane;Diethylaminosulfur trifluoride

CAS NO.：38078-09-0

Empirical Formula: C4H10F3NS

Molecular Weight: 161.19

MDL number: MFCD00000363

EINECS: 253-771-2

PRODUCT Properties

• Boiling point: 30-32 °C3 mm Hg(lit.)
• Density: 1.22 g/mL at 25 °C(lit.)
• refractive index: 1.41-1.416
• Flash point: 75 °F
• storage temp.: 2-8°C
• solubility: Benzene, Chloroform (Slightly)
• pka: -4.87±0.70(Predicted)
• form: liquid
• Specific Gravity: 1.220
• color: Colorless to Yellow to Orange
• Water Solubility: decomposes
• Sensitive: Moisture Sensitive
• Merck: 14,3113
• BRN: 1849066
• Exposure limits: ACGIH: TWA 2.5 mg/m3; NIOSH: IDLH 250 mg/m3
• Stability: Reacts with Moisture in the Air, Reacts With Moisture In The Air, Unstable in So
• InChIKey: CSJLBAMHHLJAAS-UHFFFAOYSA-N
• CAS DataBase Reference: 38078-09-0(CAS DataBase Reference)
• NIST Chemistry Reference: Diethylaminosulfur trifluoride(38078-09-0)

Description and Uses

Diethylaminosulfur Trifluoride is a very useful Nucleophilic fluorinating agent in chemical synthesis. It is also used as a reagent in the preparation of 2-thiazolines from (1,2)-thioam ido-alcohols.

Safety

• Symbol(GHS): GHS02,GHS05
• Signal word: Danger
• Hazard statements: H226-H242-H314
• Precautionary statements: P210-P280-P303+P361+P353-P305+P351+P338-P370+P378-P403+P235
• Hazard Codes: C,T,F
• Risk Statements: 10-14-20/21/22-34-5-35-40
• Safety Statements: 16-26-36/37/39-45
• RIDADR: UN 2920 8/PG 1
• WGK Germany: 3
• F: 3-10-21
• Hazard Note: Corrosive/Keep Cold
• HazardClass: 8
• PackingGroup: I
• HS Code: 29309070
• Excepted Quantities: Not Permitted as Excepted Quantity