Synonyms: Lithium-2-butanide; s-BuLi
CAS Number: 598-30-1
Formula: C4H9Li
Formula Weight: 64.06
Linear Formula: CH3CH2CH(CH3)Li
MDL No.: MFCD00009323
Density: 0.769 g/mL at 25 C
Storage: 2-8C
Beilstein Registry Number: 3587206
UNSPSC Code: 12352103
Application: sec-Butyllithium solution (1.4M in cyclohexane) has been used in the multi-step synthesis of 5-methyl-5,6-dihydrothymidine (5-MDHT) from thymidine. It has also been used in the copper-catalyzed asymmetric allylic alkylation (AAA) of allyl bromides, chlorides, and ethers in the presence of a chiral ligand.
RIDADR: UN3394 - class 4.2 - PG 1 - EHS - Organometallic substance, liquid, pyrophoric, water-reactive, HI: all (not BR)
WGK Germany: 2
Flash Point(F): 1.4 F
Flash Point(C): -17 C
R Codes: 11-14/15-34-50/53-65-67
S Codes: 26-36/37/39-43-45-61-62
IOD Codes: F,C,N
Symbol: GHS02, GHS05, GHS07, GHS08, GHS09
Signal Word: Danger
Hazard Statements: H225-H250-H260-H304-H314-H336-H410
Precautionary statements: P210-P222-P223-P231 + P232-P370 + P378-P422