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L-Tryptophan (CAS # 73-22-3)

Chemical Property:

Molecular Formula C11H12N2O2
Molar Mass 204.23 Nws
Qhov ntom 1.34 ib
Melting Point 289-290 ° C (hnub) (lit.)
Boling Point 342.72°C (kev kwv yees kwv yees)
Kev sib hloov tshwj xeeb (α) -31.1º (c=1, H20)
Flash Point 224.7°C dej
Dej Solubility 11.4 g / L (25 ºC)
Solubility Me ntsis soluble hauv dej (1.14%, 25 ° C), tsis tshua muaj soluble hauv ethanol. Soluble nyob rau hauv dilute acid los yog hauv paus.
Vapor Siab 8.3E-09mmHg ntawm 25 ° C
Qhov tshwm sim Crystalline hmoov
Xim Dawb rau daj-dawb
Merck 14, 9797 ib
BRN 86197 ib
pKa 2.46 (ntawm 25 ℃)
PH 5.5-7.0 (10g / l, H2O, 20 ℃)
Kev cia khoom 2-8 ° C
Kev ruaj ntseg ruaj khov. Incompatible nrog muaj zog acids, muaj zog oxidizing neeg sawv cev.
rhiab heev Sensitive rau lub teeb
Refractive Index -32 ° (C = 1, H2O)
MDL PAB 00064340
Physical thiab Chemical Properties ceev 1.34
melting point 280-285 ° C
kev sib hloov kho qhov muag -31.1 ° (c = 1, H20)
dej-soluble 11.4g / L (25 ° C)
Siv Txhim khu kev noj haus, txhim khu lub cev muaj zog.

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes R33 - Kev phom sij ntawm cov teebmeem tshwm sim
R40 - Cov pov thawj txwv ntawm cov nyhuv carcinogenic
R62 - Muaj peev xwm muaj feem cuam tshuam ntawm fertility
R41 - Riam phom loj rau qhov muag
R37/38 - Kab mob ua pa thiab tawv nqaij.
R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
R22 - Ua phem yog tias nqos
Kev nyab xeeb piav qhia S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
S36 - Hnav khaub ncaws tiv thaiv zoo.
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
WGK Germany 2
RTECS YN6130000
FLUKA BRAND F CODE 8
TSCA Yog lawm
HS Code 293399 0
Toxicity LD508mmol / kg (rat, intraperitoneal txhaj). Nws muaj kev nyab xeeb thaum siv hauv cov khoom noj (FDA, §172.320, 2000).

 

Taw qhia

L-Tryptophan yog chiral amino acid nrog lub nplhaib indole thiab ib pawg amino hauv nws cov qauv. Nws feem ntau yog cov hmoov dawb los yog daj crystalline hmoov uas yog me ntsis soluble hauv dej thiab muaj zog solubility nyob rau hauv acidic tej yam kev mob. L-tryptophan yog ib qho tseem ceeb ntawm cov amino acids uas tsis tuaj yeem tsim los ntawm tib neeg lub cev, yog ib feem ntawm cov proteins, thiab tseem yog ib qho tseem ceeb raw khoom hauv synthesis thiab metabolism ntawm cov proteins.

 

Muaj ob txoj hauv kev los npaj L-tryptophan. Ib qho yog muab rho tawm los ntawm tej yam ntuj tso, xws li cov pob txha tsiaj, cov khoom siv mis nyuj, thiab cov noob cog. Lwm qhov yog synthesized los ntawm biochemical synthesis txoj kev, siv cov kab mob microorganisms lossis genetic engineering technology rau synthesis.

 

L-tryptophan feem ntau muaj kev nyab xeeb, tab sis kev noj ntau dhau yuav muaj qee yam kev mob tshwm sim. Kev noj ntau dhau yuav ua rau mob plab hnyuv, xeev siab, ntuav, thiab lwm yam kev zom zaub mov. Rau qee tus neeg mob, xws li cov uas tsis tshua muaj kab mob tryptophan hauv tus kab mob, kev noj L-tryptophan tuaj yeem ua rau muaj teeb meem kev noj qab haus huv ntau dua.


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  • Sau koj cov lus ntawm no thiab xa tuaj rau peb