N-(Azido-PEG4)-N-Boc-PEG4-t-butyl ester

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MedKoo CAT#: 572845

CAS#: 2112737-20-7

Description: N-(Azido-PEG4)-N-Boc-PEG4-t-butyl ester is a branched PEG derivative with a terminal azide group, Boc protected amine, and a terminal t-butyl ester. The azide group enables PEGylation via Click Chemistry. The protected amine can be deprotected by acidic conditions, and the t-butyl protected carboxyl group can be deprotected under mild acidic conditions.

Price and Availability

Size Price Shipping out time Quantity
100mg USD 530 2 Weeks
250mg USD 970 2 Weeks
500mg USD 1550 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2020-08-08. Prices are subject to change without notice.

N-(Azido-PEG4)-N-Boc-PEG4-t-butyl ester, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 572845
Name: N-(Azido-PEG4)-N-Boc-PEG4-t-butyl ester
CAS#: 2112737-20-7
Chemical Formula: C30H58N4O12
Exact Mass: 666.4051
Molecular Weight: 666.81
Elemental Analysis: C, 54.04; H, 8.77; N, 8.40; O, 28.79

Synonym: N-(Azido-PEG4)-N-Boc-PEG4-t-butyl ester

IUPAC/Chemical Name: tert-butyl 1-azido-15-(tert-butoxycarbonyl)-3,6,9,12,18,21,24,27-octaoxa-15-azatriacontan-30-oate


InChi Code: InChI=1S/C30H58N4O12/c1-29(2,3)45-27(35)7-11-37-15-19-41-23-25-43-21-17-39-13-9-34(28(36)46-30(4,5)6)10-14-40-18-22-44-26-24-42-20-16-38-12-8-32-33-31/h7-26H2,1-6H3


Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>3 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


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