Fmoc-Tyr(tBu)-OH, ≥98% (HPLC)

Name: Fmoc-Tyr(tBu)-OH, ≥98% (HPLC)
Brand: Vaqora Chemicals
SKU: VQ-002301

About Fmoc-Tyr(tBu)-OH, ≥98% (HPLC)

Fmoc-Tyr(tBu)-OH (CAS 71989-38-3) is a protected amino acid offered by Vaqora Chemicals with a typical assay of ≥98%. Formula C28H29NO5, molecular weight 459.5 g/mol. The IUPAC name is (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-[4-[(2-methylpropan-2-yl)oxy]phenyl]propanoic acid. Alternative names: Fmoc-O-tert-butyl-L-tyrosine and Fmoc-L-Tyr(tBu)-OH.

It is supplied as colourless to white powder or crystals. Key physical data: a melting point of 153-156 °C. Recommended storage is at 2–8 °C, with the container kept tightly sealed. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include solid-phase peptide synthesis (SPPS), peptide drug discovery and medicinal chemistry. Typical end-use sectors are academic and industrial research and diagnostics and biotechnology.

Vaqora Chemicals supplies Fmoc-Tyr(tBu)-OH in 10 g, 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Solid-phase peptide synthesis (SPPS)
Peptide drug discovery
Medicinal chemistry

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Fmoc-Tyr(tBu)-OH, ≥98% (HPLC)
Catalogue No.	VQ-002301
CAS Number	71989-38-3
IUPAC name	(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-[4-[(2-methylpropan-2-yl)oxy]phenyl]propanoic acid
Molecular formula	C₂₈H₂₉NO₅
Molecular weight	459.5 g/mol
Exact mass	459.2046
Purity / assay	≥98%
HSN code	29420090
InChIKey	JAUKCFULLJFBFN-VWLOTQADSA-N
SMILES	CC(C)(C)OC1=CC=C(C=C1)C[C@@H](C(=O)O)NC(=O)OCC2C3=CC=CC=C3C4=CC=CC=C24
PubChem CID	10895791

Physical properties
Physical form	Crystalline
Appearance	Colourless to white powder or crystals
Melting point	153-156 °C
LogP (XLogP3)	5.6
H-bond donors / acceptors	2 / 5
TPSA	84.9 Å²
Storage	2–8 °C
Synonyms	N-(9-Fluorenylmethoxycarbonyl)-O-tert-butyl-L-tyrosine, Fmoc-O-tert-butyl-L-tyrosine, Fmoc-L-Tyr(tBu)-OH, (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-(tert-butoxy)phenyl)propanoic acid, Nalpha-Fmoc-O-tert-butyl-L-tyrosine, O-tert-Butyl-Nalpha-Fmoc-L-tyrosine, Fmoc-Tyr(But)-OH, L-Tyrosine, O-(1,1-dimethylethyl)-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, (2S)-3-(4-tert-butoxyphenyl)-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid, Fmoc-Tyr(t-Bu)-OH, Nalpha-[(9H-Fluoren-9-ylmethoxy)carbonyl]-O-tert-butyl-L-tyrosine, (2S)-3-[4-(tert-butoxy)phenyl]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 71989-38-3

Cell Culture

Fmoc-Tyr(tBu)-OH, cell culture tested

CAS: 71989-38-3
Formula: C₂₈H₂₉NO₅
MW: 459.5 g/mol

VQ-046295

Frequently asked questions

What is the CAS number of Fmoc-Tyr(tBu)-OH, ≥98% (HPLC)?

The CAS Registry Number of Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) is 71989-38-3. It is also known as N-(9-Fluorenylmethoxycarbonyl)-O-tert-butyl-L-tyrosine, Fmoc-O-tert-butyl-L-tyrosine, Fmoc-L-Tyr(tBu)-OH.

What is the molecular formula and molecular weight of Fmoc-Tyr(tBu)-OH, ≥98% (HPLC)?

Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) has the molecular formula C28H29NO5 and a molecular weight of 459.5 g/mol. Its IUPAC name is (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-[4-[(2-methylpropan-2-yl)oxy]phenyl]propanoic acid.

Which grade and pack sizes of Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) can I order?

We supply Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) in (≥98%) grade, in 10 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Fmoc-Tyr(tBu)-OH, ≥98% (HPLC)?

Yes. Every lot of Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) be shipped internationally?

Yes. Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

How should Fmoc-Tyr(tBu)-OH, ≥98% (HPLC) be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.