DL-Valine (CAS # 516-06-3)

Chemical Property:

Molecular Formula	C5H11NO2
Molar Mass	117.15 Nws
Qhov ntom	1.31 ib
Melting Point	295 ° C (Lub Kaum Ob Hlis) (lit.)
Boling Point	213.6 ± 23.0 ° C (Tshaj tawm)
Kev sib hloov tshwj xeeb (α)	-0.6 ~ + 0.6 ° (20 ℃ / D) (c = 8, HCl)
Flash Point	83 ° C
JECFA Number	1426
Dej Solubility	68 g/l os
Solubility	Soluble nyob rau hauv dej, insoluble nyob rau hauv txias ethanol, ether thiab acetone
Vapor Siab	0.0633mmHg ntawm 25 ° C
Qhov tshwm sim	Dawb crystalline hmoov
Xim	Dawb
tsw	Tsis hnov tsw
Merck	14,9909 ib
BRN	5 06689
pKa	pK1:2.32(+1);pK2:9.61(0) (25 °C)
Kev cia khoom	Khaws nyob rau hauv qhov chaw tsaus, inert cua, chav tsev kub
rhiab heev	Yooj yim absorbing noo noo
Refractive Index	1.4650 (kwv yees)
MDL	PAB 00004267
Physical thiab Chemical Properties	ceev 1.31 melting point 283.5-285 ° C dej-soluble 68g / L
Siv	Yuav siv tau rau kev noj haus thiab tshuaj synthesis

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Product Detail

Khoom cim npe

Hazard Cov Cim	Xn – Ua phem
Risk Codes	40 - Cov pov thawj txwv ntawm cov nyhuv carcinogenic
Kev nyab xeeb piav qhia	S22 - Tsis txhob nqus plua plav. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S36 - Hnav khaub ncaws tiv thaiv zoo.
WGK Germany	3
RTECS	wb 9355500
TSCA	Yog lawm
HS Code	29224995 ib

Taw qhia

Nws muaj peev xwm sublimate thaum rhuab ntawm ib tug dav ceev ceev thiab decompose ntawm 298 ℃ (tube sealing, ceev cua sov). Solubility nyob rau hauv dej: 68g / l, insoluble nyob rau hauv txias cawv thiab ether, soluble nyob rau hauv inorganic acid; insoluble hauv cov kuab tshuaj organic; me ntsis soluble hauv benzene thiab cawv.

Yav dhau los: 2 6-Dichlorophenylhydrazine hydrochloride (CAS # 50709-36-9)

Tom ntej: 2-HYDROXY-3-AMINO-5-PICOLINE (CAS # 52334-51-7)

Sau koj cov lus ntawm no thiab xa tuaj rau peb