Lithium diisopropylamide solution

ALDRICH/361798 - 2.0 M in THF/heptane/ethylbenzene

Synonym: LDA

CAS Number: 4111-54-0
Empirical Formula (Hill Notation): C₆H₁₄LiN
Molecular Weight: 107.12
MDL Number: MFCD00064449
Linear Formula: [(CH₃)₂CH]₂NLi
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-361798-4X25ML	25 mL	$72.30 4/EA		Add To Favorites
45-361798-100ML	100 mL	$77.30 1/EA		Add To Favorites
45-361798-4X100ML	100 mL	$276.00 4/EA		Add To Favorites
45-361798-800ML	800 mL	$278.00 1/EA		Add To Favorites

25 mL Sure/Seal™ Packaging

Properties
Descriptions
Safety Info.
Basic Data

concentration	2.0 M in THF/heptane/ethylbenzene
density	0.812 g/mL at 25 °C
form	liquid
functional group	amine
impurities	3 wt. % diisopropylamine
InChI	1S/C6H14N.Li/c1-5(2)7-6(3)4;/h5-6H,1-4H3;/q-1;+1
InChI key	ZCSHNCUQKCANBX-UHFFFAOYSA-N
Quality Level	200
SMILES string	[Li]N(C(C)C)C(C)C
storage temp.	2-8°C

Application:	Lithium diisopropylamide solution (LDA) can be used: • As an initiator in the anionic polymerization of D,L-lactide and methyl methacrylate. • To facilitate ester enolization. • To convert carboxylic acids to enediolate intermediates for preparing trifluoromethyl ketones. • In ortho-lithiation of arylsulfonyloxazolidinones to prepare N-substituted saccharin analogs. • To catalyze ortholithiation and Fries rearrangement of aryl carbamates. • As a promoter in the isomerization of allylic ethers to (Z)-propenyl ethers.
General description:	Lithium diisopropylamide solution (LDA) is a sterically hindered non-nucleophilic strong base widely used in organic synthesis.
Legal Information:	Sure/Seal is a trademark of Sigma-Aldrich Co. LLC
Packaging:	4×25, 100, 4×100, 800 mL in Sure/Seal™
Packaging:	The 25 mL Sure/Seal^™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Symbol	GHS02,GHS05,GHS07,GHS08,GHS09
Signal word	Danger
Hazard statements	H225 - H304 - H314 - H335 - H336 - H351 - H373 - H410
Precautionary statements	P210 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
Hazard Codes	F,C,N
Risk Statements	63-11-14-17-19-34-37-40-48/20-51/53-62-65-67
Safety Statements	16-26-36/37/39-45-61-62
RIDADR	UN3399 - class 4.3 - PG 2 - EHS - Organometallic substance, liqu
WGK Germany	WGK 3
Flash Point(F)	35.6 °F - closed cup
Flash Point(C)	2 °C - closed cup
Supplemental Hazard Statements	EUH014 - EUH019

Density	0.812 g/mL at 25 °C
Storage Temp.	2-8°C
UNSPSC	12352001

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