N-(9-Fmoc)-L-glutamic acid γ-tert-butyl ester monohydrate(CAS 204251-24-1)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 5G | In Stock | 3 USD
 |
|
| 98% | RG | 25G | In Stock | 9 USD
|
|
| 98% | RG | 100G | In Stock | 32 USD
|
|
| 98% | RG | 500G | In Stock | 120 USD
|
|
| 98% | RG | 2.5KG | In Stock | 1125 USD
|
|
|
|||||
Your region is eligible for ordering. Available NMR Spectrum
Verified In Stock
Fast Shipping ISO 9001
Quality System
Applications of 204251-24-1
| Industry | Application | Process |
|---|---|---|
| Biopharmaceuticals | Protecting reagent for the glutamic acid side chain in solid-phase peptide synthesis | Used in Fmoc-based solid-phase peptide synthesis (SPPS) to selectively protect the γ-carboxyl group of L-glutamic acid, preventing side reactions during backbone coupling; the free glutamic acid residue is liberated upon cleavage of the tert-butyl ester with TFA and removal of the Fmoc group with piperidine |
| Pharmaceutical R&D | Key building block for peptide therapeutics and intermediates (e.g., GLP-1 analogues, antimicrobial peptides) | Employed as a chiral, orthogonally protected glutamic acid derivative in stepwise coupling or fragment condensation processes to maintain stereochemical integrity and ensure compatibility with side-chain functional groups |
| Fine Chemicals | Standard protected amino acid raw material for high-purity custom peptide synthesis services | Compatible with automated peptide synthesizers (e.g., Cyclone, Syro II), enabling amide bond formation in DMF/NMP solvents using activators such as HBTU, HATU, or DIC |
Physical and chemical properties of 204251-24-1
Boiling Point |
633.5ºC at 760mmHg |
|---|---|
Exact Mass |
443.194397 |
Flash Point |
336.9ºC |
H Bond Acceptors |
4 |
H Bond Donors |
2 |
LogP |
4.42680 |
Melting Point |
89-93ºC |
Molecular Formula |
C24H29NO7 |
Molecular Weight |
443.490 |
optical activity |
[α]20/D 17.5°, c = 1 in DMF |
PSA |
111.16000 |
Storage condition |
-20°C |
Vapour Pressure |
6.39E-17mmHg at 25°C |
Spectrums of 204251-24-1
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Cas:2419-56-9
Cas:82911-69-1
Cas:28920-43-6
Cas:45125-00-6
Q&A for CAS 204251-24-1
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
8. Do you have products in stock?
Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.
Download SDS of 204251-24-1
Pictograms |
 |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 204251-24-1
Operate under the ISO 9001 system
