N-alpha-Fmoc-L-valine (CAS# 68858-20-8)

Chemical Property:

Molecular Formula C20H21NO4

Molar Mass 339.39

Density 1.2270 (rough estimate)

Melting Point 143-145°C(lit.)

Boling Point 475.36°C (rough estimate)

Specific Rotation(α) -16 º (c=1,DMF)

Flash Point 287.5°C

Solubility Solubility in methanol gives very faint turbidity

Vapor Presure 5.19E-13mmHg at 25°C

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Product Detail

Product Tags

Application

Fmoc-L-valine is an amino acid derivative, it can be prepared by one-step reaction of L-valine with 9-fluorenyl methyl chloroformate. It has been reported in the literature that it can be used for the preparation of valacyclovir.

Specification

Appearance White to yellow crystals
Color Off-White
BRN 2177443
pKa 3.90±0.10(Predicted)
Storage Condition 2-8°C
Refractive Index -17.5 ° (C=1, DMF)
MDL MFCD00037124

Safety

Risk Codes 36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S22 - Do not breathe dust.
S27 - Take off immediately all contaminated clothing.
S24/25 - Avoid contact with skin and eyes.
WGK Germany 3
HS Code 29242990
Hazard Note Irritant