WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 121197

CAS#: 2374122-30-0

Description: VHN22300, also known as (S,R,S)-AHPC-PEG3-Alkyne, is a ProTAC building block. This conjugate contains a von Hippel-Lindau (VHL)-recruiting ligand and a PEGylated crosslinker with pendant alkyne for click chemistry with an azide on the target ligand. When used with other protein degrader building blocks with a pendant alkyne group, parallel synthesis can be used to more quickly generate ProTAC libraries that feature variation in crosslinker length, composition, and E3 ligase ligand. This product has no formal name at the moment. For the convenience of communication, a temporal code name was therefore proposed according to MedKoo Chemical Nomenclature (see web page: https://www.medkoo.com/page/naming).

Chemical Structure

CAS# 2374122-30-0

Theoretical Analysis

MedKoo Cat#: 121197
Name: VHN22300
CAS#: 2374122-30-0
Chemical Formula: C32H44N4O7S
Exact Mass: 628.29
Molecular Weight: 628.790
Elemental Analysis: C, 61.13; H, 7.05; N, 8.91; O, 17.81; S, 5.10

Price and Availability

Size Price Availability Quantity
50mg USD 895 2 Weeks
Bulk inquiry

Synonym: (S,R,S)-AHPC-PEG3-Alkyne

IUPAC/Chemical Name: (2S,4R)-1-((S)-2-(tert-Butyl)-4-oxo-7,10,13-trioxa-3-azahexadec-15-ynoyl)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide


InChi Code: InChI=1S/C32H44N4O7S/c1-6-12-41-14-16-43-17-15-42-13-11-27(38)35-29(32(3,4)5)31(40)36-20-25(37)18-26(36)30(39)33-19-23-7-9-24(10-8-23)28-22(2)34-21-44-28/h1,7-10,21,25-26,29,37H,11-20H2,2-5H3,(H,33,39)(H,35,38)/t25-,26+,29-/m0/s1


Appearance: To be determined

Purity: >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).

Solubility: To be determined

Shelf Life: >2 years if stored properly

Drug Formulation: To be determined

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

HS Tariff Code: 2934.99.9001

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 628.79 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.