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L-Leucine, N-((1,1-dimethylethoxy)carbonyl)-

HCID 83170
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Basic information

CAS
13139-15-6
Standard SMILES
CC(C)C[C@H](NC(=O)OC(C)(C)C)C(=O)O
InChIKey
MDXGYYOJGPFFJL-QMMMGPOBSA-N
Molecular formula
C11H21NO4
Average molar mass
231.29 g/mol
Monoisotopic mass
231.14705815

Overview

N(alpha)-t-butoxycarbonyl-L-leucine is a L-leucine derivative obtained by the substitution of a t-butoxycarbonyl group on the nitrogen atom. It is a carbamate ester and a L-leucine derivative.

Names & identifiers

Preferred name
L-Leucine, N-((1,1-dimethylethoxy)carbonyl)-
IUPAC
(2S)-4-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoic acid
English name
BOC-L-Leucine
Molecular formula
C11H21NO4
Molecular weight
231.29

Names & synonyms

tert-Butoxycarbonyl-L-leucineN-tert-ButoxycarbonylleucineN-tert-Butyloxycarbonyl-L-leucinetert-Butyloxycarbonyl-L-leucinetert-ButyloxycarbonylleucineNSC 108690L-Leucine, N-[(1,1-dimethylethoxy)carbonyl]-N-((1,1-Dimethylethoxy)carbonyl)-L-leucineN-[(1,1-Dimethylethoxy)carbonyl]-L-leucineLeucine, N-carboxy-, N-tert-butyl ester, L-EINECS 236-073-2Boc-Leu-OH monohydrate
Show more names
BOC-LEU-OHBOC-LEUBOC-L-LEU-OHN-Boc-L-leucineBOC-L-LeuBOC-LEU-OH·H2ON-TERT-BUTOXYCARBONYL-L-LEUCINEn-[(1,1-dimethylethoxy)carbonyl]-l-leucinBoc-Leu-OH·H
DTXSID80884507L-Leucine, N-((1,1-dimethylethoxy)carbonyl)-RefChem:796793DTXCID901023943Leucine, N-carboxy-, N-tert-butyl ester, L-(8CI)236-073-213139-15-6Boc-L-leucine

Properties

Computed structural propertiesFilling in

XLogP
2.2
Topological polar surface area
75.6 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
4
Rotatable bonds
6
Heavy atoms
16
Formal charge
0
Complexity
255

Physicochemical properties

Melting point
85 · 85-87 °C
Boiling point
356 · 356.0±25.0 °C(Predicted)
Density
1.061 · 1.061±0.06 g/cm3(Predicted)
refractive index
-25 ° · -25 ° (C=2, AcOH)
storage temp.
2 · Sealed in dry,2-8°C
solubility
Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
pka
4.02 · 4.02±0.21(Predicted)
form
Powder
color
White
optical activity
20 · [α]20/D 25±0.5°, c = 2% in acetic acid
BRN
1711814 · 1711814
InChI
InChI=1S/C11H21NO4/c1-7(2)6-8(9(13)14)12-10(15)16-11(3,4)5/h7-8H,6H2,1-5H3,(H,12,15)(H,13,14)/t8-/m0/s1
InChIKey
URQQEIOTRWJXBA-QRPNPIFTSA-N
SMILES
C(O)(=O)[C@H](CC(C)C)NC(OC(C)(C)C)=O
CAS DataBase Reference

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 80% (4 of 5) of all reports.

Warning

H315 (20%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 5 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazard Classes and CategoriesSkin Irrit. 2 (20%)

Safety data

wgk
3
tsca
TSCA listed
hs_code
29241990
risk_code
20/21/22-36/37/38
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi,Xn
safety_code
26-36
Hazard statements
H315-H319-H335
Precautionary statements
P302+P352-P304+P340-P305+P351+P338

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationL-Leucine, N-[(1,1-dimethylethoxy)carbonyl]-: ACTIVE

Applications

UsesProtected amino acid with antimicrobial activity.

Upstream & downstream products

Downstream products

Boc-Leu-chloromethylketoneBoc-Leu-OSuCetrorelixSubstance P (6-11)(4S)-4-Amino-2,6-dimethyl-1-hepten-3-one 2,2,2-TrifluoroacetateBoc-Leu-(R)-Val-OH

Additional notes

DefinitionChEBI: BOC-L-Leucine, also called N(alpha)-t-butoxycarbonyl-L-leucine is a L-leucine derivative obtained by the substitution of a t-butoxycarbonyl group on the nitrogen atom. It is a carbamate ester and a L-leucine derivative.

Related reactions

181 records
New reaction record
HRID 4985 reaction equation
HRID 4985As reactantuspto-grants-1993_09
HRID 5335 reaction equation
HRID 5335As productAs reactantuspto-grants-1993_09
HRID 22449 reaction equation
HRID 22449As reactantuspto-grants-1995_06
HRID 32294 reaction equation
HRID 32294As reactantuspto-grants-2008_09
HRID 35144 reaction equation
HRID 35144As reactantuspto-grants-1988_08
HRID 35815 reaction equation
HRID 35815As reactantuspto-grants-1995_05
HRID 53085 reaction equation
HRID 53085As reactantuspto-grants-1997_04
HRID 62708 reaction equation
HRID 62708As reactantuspto-grants-2016_09
Page 1 of 23

Compound notes

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Database identifiers

CAS
13139-15-6
PubChem CID
83170
DTXSID
DTXSID80884507
ChEMBL
CHEMBL1222009
ChEBI
CHEBI:28702
EC Number
236-073-2
Nikkaji
J184.523C
13139 · 13139-15-6(CAS DataBase Reference)
EPA Substance Registry System
L-Leucine, N-[(1,1-dimethylethoxy)carbonyl]- (13139-15-6)
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
315 · H315-H319-H335
Precautionary statements
302 · P302+P352-P304+P340-P305+P351+P338
Hazard Codes
Xi,Xn
Risk Statements
20 · 20/21/22-36/37/38
Safety Statements
26 · 26-36
WGK Germany
3 · 3
TSCA
TSCA listed
HS Code
29241990 · 29241990