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

Chemical Property:

Molecular Formula	C20H21NO4
Molar Mass	339.39 ib
Qhov ntom	1.2270 (kev kwv yees kwv yees)
Melting Point	143-145 ° C (lit.)
Boling Point	475.36 ° C (kwv yees kwv yees)
Kev sib hloov tshwj xeeb (α)	-16 º (c = 1, DMF)
Flash Point	287.5°C dej
Solubility	Solubility hauv methanol muab faint turbidity heev.
Vapor Siab	5.19E-13mmHg ntawm 25 ° C
Qhov tshwm sim	Dawb rau daj crystals
Xim	Tawm-dawb
BRN	2177443 ib
pKa	3.90 ± 0.10 (Kev kwv yees)
Kev cia khoom	2-8 ° C
Refractive Index	-17.5 ° C = 1, DMF
MDL	PAB 00037124

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Product Detail

Khoom cim npe

Daim ntawv thov

Fmoc-L-valine yog ib qho amino acid derivative, nws tuaj yeem npaj los ntawm ib-kauj ruam cov tshuaj tiv thaiv L-valine nrog 9-fluorenyl methyl chloroformate. Nws tau raug tshaj tawm nyob rau hauv cov ntaub ntawv hais tias nws tuaj yeem siv rau kev npaj ntawm valacyclovir.

Specification

Qhov tsos dawb mus rau daj muaju
Xim Off-White
TIAB SA 2177443
pKa 3.90 ± 0.10 (Predicted)
Cia txias 2-8 ° C
Refractive Index -17.5 ° (C = 1, DMF)
MDL MFCD00037124

Kev nyab xeeb

Risk Codes 36/37/38 - Irritating rau qhov muag, ua pa thiab tawv nqaij.
Kev Nyab Xeeb Kev Nyab Xeeb S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
S26 - Nyob rau hauv rooj plaub ntawm qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S22 - Tsis txhob nqus plua plav.
S27 - Tshem tawm tag nrho cov khaub ncaws tsis huv tam sim ntawd.
S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
WGK Germany 3
HS Code 29242990
Hazard Note Irritant