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

Chemical Property:

Molecular Formula C20H21NO4

Molar pawg 339.39

Density 1.2270 (kwv yees ntxhib)

Melting Point 143-145 ° C (lit.)

Boling Point 475.36 ° C (kwv yees ntxhib)

Kev sib hloov tshwj xeeb (α) -16 º (c = 1, DMF)

Flash Point 287.5 ° C

Solubility Solubility nyob rau hauv methanol muab faint turbidity heev

Vapor Presure 5.19E-13mmHg ntawm 25 ° C

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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