DBU manufacturers and suppliers

DBU suppliers

Properties

Melting point:: -70 °C

Boiling point:: 80-83 °C0.6 mm Hg(lit.)

Density: 1.019 g/mL at 20 °C(lit.)

vapor pressure: 5.3 mm Hg ( 37.7 °C)

refractive index: n20/D 1.523

Flash point:: >230 °F

storage temp.: Store below +30°C.

solubility: soluble

form: Liquid

pka: 13.28±0.20(Predicted)

color: Clear colorless to light yellow

Odor: Unpleasant

PH Range: 12.8 at 10 g/l at 20 °C

PH: 12.8 (10g/l, H2O, 20℃)

explosive limit: 1.1-6.5%(V)

Water Solubility: soluble

Sensitive: Air Sensitive

BRN: 508906

Stability:: Stable. Incompatible with strong oxidizing agents, acids, acid chlorides, acid anhydrides.

InChIKey: GQHTUMJGOHRCHB-UHFFFAOYSA-N

Safety Information

Symbol(GHS): GHS05,GHS06

Symbol(GHS): GHS05,GHS06

Signal word: Danger

Signal word: Danger

Hazard statements: H290-H301-H314-H412

Hazard statements: H290-H301-H314-H412

Precautionary statements: P234-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338

Precautionary statements: P234-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338

Hazard Codes: C,F

Risk Statements: 22-34-52/53-35-40-37-19-11-67

Safety Statements: 26-36/37/39-45-61-27-16

RIDADR: UN 3267 8/PG 2

WGK Germany: 2

F: 34

Autoignition Temperature: 260 °C

TSCA: Yes

HazardClass: 8

PackingGroup: II

HS Code: 29339930

Toxicity: LD50 orally in Rabbit: 215 - 681 mg/kg

Use

1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) may be used: as catalyst for carboxylic acid esterification with dimethyl carbonate in the synthesis of duocarmycin and CC-1065 analogs as catalyst in aza-Michael addition and Knovenegal condensation reaction as base for dehalogenation of halogenated Diels-Alder adducts and the resulting activated 2,4-dienones were subjected to regio- and stereo-directed Michael additions, using Yamamotos reagent (CH3Cu BF3) in a new synthesis of the ABCD ring system of Camptothecin 1,8-Diazabicyclo[5.4.0]undec-7-ene may be used as an catalyst for the dissolution and activation of cellulose by a reversible reaction of its hydroxyl groups with carbon dioxide. This dissolved cellulose system can be derivatized to form cellulose mixed esters. Used in a new synthesis of the ABCD ring system of Camptothecin.

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