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PE 22-28 High Purity API Intermediate, Lab Synthetic Research Raw Material

Name: PE 22-28 High Purity API Intermediate, Lab Synthetic Research Raw Material
Brand: Lab Synthesis
SKU: pr2607203568
Price: 90 USD
Availability: InStock

TDS 5 Inquiries

Unit Price:

$90/UNIT FOB

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CAS No.:

1801959-12-5

Grade:

Pharmaceutical Grade, High HPLC Purity

Content:

99%

Port:

Guangzhou

Brand:

Lab Synthesis

Packaging:

1g / 5g / 10g vacuum sealed glass bottle

Price valid (until):

2026-08-20

Contact Supplier

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Yiwu Zhanpian Trading Co., Ltd.

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Retatrutide,Tirzepatide,Semaglutide,GHK-CU

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Product Description
Seller Information
Inquiry History

Description

Items	Specifications
Full Product Name	PE 22-28 High Purity API Intermediate
CAS Number	1801959-12-5
Appearance	White crystalline solid
HPLC Assay Purity	≥99%
Storage Condition	Hermetically sealed at 2–8°C, dry dark environment
Unopened Shelf Life	24 months
Model No.	PE22-28-I01
Standard Package	1g / 5g / 10g vacuum sealed glass bottle

Product Overview

PE 22-28 High Purity API Intermediate (CAS: 1801959-12-5) is a key heterocyclic synthetic intermediate dedicated to laboratory pharmaceutical synthesis research. The product adopts full-enclosed low-temperature synthesis, multi-stage recrystallization purification and vacuum drying process, effectively removing residual catalysts, unreacted raw materials and heavy metal impurities. The finished product presents uniform white crystalline solid, with HPLC single-point purity ≥99%, each single unknown impurity less than 0.1%, total impurities controlled below 1.0%. The whole production line follows laboratory chemical raw material quality control standards, strictly limits heavy metal, microbial and endotoxin residues, greatly reducing interference in subsequent synthetic route trials and ensuring stable yield and repeatability of multi-step API synthesis experiments. Its unique heterocyclic molecular skeleton can participate in multiple coupling and cyclization reactions, widely applied in novel small-molecule drug route exploration, pharmaceutical process optimization, intermediate structure modification and compound library construction for academic research labs and pharmaceutical R&D institutions. Each batch is supplied with complete authentic inspection documents without modification, including full-spec COA test report, HPLC chromatogram, mass spectrometry identification data and TDS technical data sheet, fully meeting laboratory filing requirements and journal research paper submission standards.

Core Product Advantages

Consistent high purity across batches, stable synthetic experimental performance

All raw material batch records, synthesis process parameters and finished product full-item test data are permanently filed for cross-batch comparison, avoiding purity fluctuation affecting reaction conversion rate. Complete original instrument test spectrum data will be delivered with each order, convenient for laboratory data archiving and research manuscript review.
One-stop professional chemical technical support

Our R&D chemists with years of pharmaceutical synthesis experience provide free online technical consultation during working hours, covering raw material storage specifications, feeding proportion matching, impurity generation analysis and synthetic route optimization guidance. Customized split vacuum packaging and OEM private label services are available according to research institute personalized orders.
Complete compliant certification materials for academic publication

Unprocessed original chromatogram and mass spectrum raw data can be directly used for journal manuscript submission, saving researchers time on data sorting and improving the acceptance rate of pharmaceutical synthetic chemistry papers.
Factory direct supply, permanent in-stock & temperature-controlled cross-border logistics

We are professional fine chemical intermediate manufacturer with long-term stable spot inventory; replenishment orders from long-term cooperative laboratories will be prioritized for production and delivery. All products adopt low-temperature insulated vacuum glass bottle packaging, which can effectively maintain crystal stability during long-distance international transportation, prevent deliquescence and oxidation failure, and realize on-time delivery to global customers.
Independent segmented closed production workshops to avoid cross-contamination

Synthesis, purification, recrystallization, drying and subpackaging workshops are isolated from each other with dedicated production equipment, fundamentally eliminating cross-contamination risk from other chemical raw materials and different intermediates.
Full order tracking & rapid after-sales solving mechanism

Special customer service tracks the whole process of quality inspection, packaging, cold chain transportation and customs clearance. Targeted rapid solutions will be provided for any product quality and experimental technical problems; long-term cooperative customers can enjoy exclusive one-to-one lasting technical follow-up service.

Standard Storage Guidance

To fully maintain crystal stability and raw material activity:

Short-term storage within 6 months: Tighten the bottle cap completely, store in dry, dark environment at 2–8°C.

Long-term storage over 6 months: Must be stored under sealed refrigeration below -20°C. Prevent moisture ingress, repeated temperature alternation and direct light exposure.

Before weighing and dissolving operation, place the sealed container at room temperature for full temperature balance to avoid water condensation polluting the crystal product.

Optional Packaging Specifications

Standard specifications: 1g / 5g / 10g vacuum sealed glass bottle. Customized net weight split packaging and private label OEM labeling can be arranged according to customer demands.

Our lab chemical raw materials are exported worldwide, covering Europe, America, South America, Africa, the Middle East, Southeast Asia and other regions.

We support multi-channel global shipment: sea freight, air freight and land truck transport. Customized packaging and stable full-set export documents are provided for smooth cross-border delivery.

Flexible payment options available: Wire Bank Transfer, USDT and Bitcoin.

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Certificates

Basic Info

Product Name:

PE 22-28

Other Name:

L-Arginine, glycyl-L-valyl-L-seryl-L-tryptophylglycyl-L-leucyl-;(2S,5S,11S,14S,17S)-11-((1H-Indol-3-yl)methyl)-20-amino-2-(3-guanidinopropyl)-14-(hydroxymethyl)-5-isobutyl-17-isopropyl-4,7,10,13,16,19-hexaoxo-3,6,9,12,15,18-hexaazaicosan-1-oic acid;PE 22-28

CAS No.:

1801959-12-5

Molecular Formula:

C35H55N11O9

InChIKeys:

CMNBQRXBBJQIOA-YIHYGEMESA-N

Molecular Weight:

773.88

Color/Form:

White to off-white

Categories:

Bulk Drug Intermediates

Characteristics

Density:

1.44±0.1 g/cm3(Predicted)

PKA:

3.34±0.10(Predicted)

Seller Information

Business Type:
Trader

Main Products:
Retatrutide,Tirzepatide,Semaglutide,GHK-CU

Location:
Plot 1, No. 205 Tongbao Road, Jiangdong Subdistrict, Yiwu City, Jinhua City, Zhejiang Province

Payment Terms:
TT against B/L draft before shipment,100% TT in advance

Year of Establishment:
2026

Inquiry History

5 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	PE-22-28	200 MG	Jun 28, 2024
Belgium	Peptide P22-28	10 MG	Feb 13, 2026
United States	Pure pe 22-28	10 MT	Oct 26, 2025
United States	PE-22-28	100 MG	Jan 11, 2026
United States	PE-22-28	10 PCS	Sep 20, 2025

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