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Fmoc-O-tert-butyl-L-tyrosine(CAS# 71989-38-3)

Chemical Property:

Molecular Formula C28H29NO5
Molar Mass 459.53
Density 1.218±0.06 g/cm3(Predicted)
Melting Point ~150°C (dec.)
Boling Point 658.2±55.0 °C(Predicted)
Specific Rotation(α) -28 º (c=1, DMF)
Flash Point 351.9°C
Solubility Chloroform (Slightly), DMF (Slightly), Methanol (Slightly)
Vapor Presure 3.2E-18mmHg at 25°C
Appearance White crystal
Color White
BRN 4216652
pKa 2.97±0.10(Predicted)
Storage Condition Store below +30°C.
Refractive Index -30 ° (C=1, DMF)
MDL MFCD00037129
Physical and Chemical Properties White crystalline powder; Insoluble in water and petroleum ether, soluble in ethyl acetate, methanol and DMF;mp is 150-151 ℃; Specific optical rotation [α]20D 10 5.2 °(0.5-2.0 mg/ml, ethyl acetate),[α]20D-27.6 °(0.5-2.0 mg/ml,DMF),[α]20D-6 °(0.5-2.0 mg/ml, methanol).

Product Detail

Product Tags

Hazard Symbols Xi – Irritant
Risk Codes 36/37/38 – Irritating to eyes, respiratory system and skin.
Safety Description S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S24/25 – Avoid contact with skin and eyes.
WGK Germany 3
HS Code 2924 29 70

 

Introduction

Fluorene methoxycarbonyl-oxotert-butyl-tyrosine is a chemical compound often abbreviated as FMOC-Tyr(tBu)-OH. The following is an introduction to its nature, use, preparation and safety information:

 

Quality:

- Appearance: White or off-white solid.

- Solubility: Soluble in some organic solvents, such as dimethyl sulfoxide and dimethylformamide.

 

Use:

- Protecting groups in chemical synthesis: FMOC groups can be used to protect amino groups in phenolic compounds to prevent them from reacting. FMOC-Tyr(tBu)-OH can be used as a starting material for the preparation of peptide chains in chemical synthesis.

 

Method:

The preparation method of FMOC-Tyr(tBu)-OH can be achieved by the following steps:

- Fluorenyl chloride (FMOC-Cl) is reacted with tert-butyl (tBu-NH2) to give fluorenylmethoxycarbonyl-tert-butichsyl (FMOC-tBu-NH-).

- Then, react the resulting FMOC-tBu-NH- with tyrosine (Tyr-OH) to generate FMOC-Tyr(tBu)-OH.

 

Safety Information:

- The use of FMOC-Tyr (tBu)-OH is subject to compliance with laboratory safety protocols.

- Avoid contact with skin and eyes, and wear protective gloves and goggles when using.

- Use in a well-ventilated area, away from fire and combustibles.

- It must not be released into the environment and should be handled and disposed of in accordance with local regulations.

 


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