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福利彩票体育彩票开奖结果查询结果:L-5-Hydroxytryptophan

L-5-Hydroxytryptophan
L-5-Hydroxytryptophan structure
CAS No.
4350-09-8
Chemical Name:
L-5-Hydroxytryptophan
Synonyms
5-HTP;L-HTP;L-5-HTP;quietim;Levothym;pretonine;OXITRIPTAN;H-TRP(5-OH)-OH;Griffonia seed;L-Trp(5-OH)-OH
CBNumber:
CB9110025
Molecular Formula:
C11H12N2O3
Formula Weight:
220.22
MOL File:
4350-09-8.mol

L-5-Hydroxytryptophan Properties

Melting point:
270 °C (dec.)(lit.)
alpha 
-32.5 º (c=1,H2O on dry basis)
Boiling point:
361.16°C (rough estimate)
Density 
0.902 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.4850(lit.)
Flash point:
175 °F
storage temp. 
2-8°C
solubility 
H2O: 10 mg/mL
form 
solid
color 
white
optical activity
[α]22/D 30°, c = 1 in H2O
Water Solubility 
Slightly soluble
Merck 
14,4847
BRN 
88200
CAS DataBase Reference
4350-09-8(CAS DataBase Reference)
EPA Substance Registry System
L-Tryptophan, 5-hydroxy-(4350-09-8)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38-65-20/21/22-20/21
Safety Statements  36-26
RIDADR  UN 2811 6.1/PG 3
WGK Germany  3
RTECS  YN7110000
3-10
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29339990
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P330 Rinse mouth.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

L-5-Hydroxytryptophan price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 107751 5-Hydroxy-L-tryptophan 98% (calc. on dried substance) 4350-09-8 1g $34 2018-11-13 Buy
Sigma-Aldrich 1329913 5-Hydroxy-L-tryptophan United States Pharmacopeia (USP) Reference Standard 4350-09-8 100mg $348 2018-11-13 Buy
TCI Chemical H0531 5-Hydroxy-L-tryptophan >98.0%(HPLC)(T) 4350-09-8 1g $13 2018-11-22 Buy
TCI Chemical H0531 5-Hydroxy-L-tryptophan >98.0%(HPLC)(T) 4350-09-8 5g $46 2018-11-22 Buy
Alfa Aesar A13954 L-5-Hydroxytryptophan hydrate 98% 4350-09-8 0.25g $13.5 2018-11-20 Buy

L-5-Hydroxytryptophan Chemical Properties,Uses,Production

Chemical Properties

white to pale grey powder

Uses

A labelled metabolite of Tryptophan

Uses

5-Hydroxy-L-Tryptophan is a hydroxylated metabolite of L-Tryptophan

General Description

Colorless to pale pink crystals.

Air & Water Reactions

L-5-Hydroxytryptophan is sensitive to air. Slightly water soluble .

Reactivity Profile

L-5-Hydroxytryptophan reacts with bases. .

Fire Hazard

Flash point data for L-5-Hydroxytryptophan are not available, however, L-5-Hydroxytryptophan is probably combustible.

Purification Methods

Likely impurities are 5-hydroxy-D-tryptophan and 5-benzyloxytryptophan. Crystallise 5-hydroxy-L-tryptophan under nitrogen from water by adding EtOH. Store it under nitrogen. Also dissolve it in the minimum volume of hot H2O (~0.7g in 4mL) under nitrogen (charcoal) and allowed it to crystallise at 5o. The picrolonate crystallises from H2O with m 184-186o(dec). [Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 p 2732-2737 1961, Morris & Armstrong J Org Chem 22 306 1957, Beilstein 22/14 V 278.]

L-5-Hydroxytryptophan Preparation Products And Raw materials

Raw materials

Preparation Products


L-5-Hydroxytryptophan Suppliers

Global( 257)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 [email protected] China 19918 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
[email protected] CHINA 21935 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 [email protected] CHINA 20676 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 [email protected] CHINA 32452 55
Jiangsu Qingquan Chemical Co., Ltd.
+86-571-86589381/86589382/86589383
[email protected] [email protected] CHINA 176 55
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 [email protected] CHINA 24196 60
career henan chemical co
+86-371-86658258
[email protected] CHINA 25796 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 [email protected];[email protected];[email protected];[email protected] CHINA 23958 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254
[email protected] CHINA 20084 58
Accela ChemBio Inc.
(+1)-858-699-3322
(+1)-858-876-1948 [email protected] United States 12233 58

View Lastest Price from L-5-Hydroxytryptophan manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-15 5-HTP
4350-09-8
US $8.00 / kg 1kg 98% 100KG career henan chemical co

L-5-Hydroxytryptophan Spectrum


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