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        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;HPLC>=98%;OXITRIPTAN;H-TRP(5-OH)-OH;Griffonia seed
        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
        pka
        2.22±0.10(Predicted)
        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-5-Hydroxytryptophan (4350-09-8)
        SAFETY
        • Risk and Safety Statements
        Symbol(GHS) 
        GHS06,GHS07
        Signal word  Danger
        Hazard statements  H301-H315-H319-H335-H302
        Precautionary statements  P264-P270-P301+P312a-P330-P501a-P305+P351+P338
        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
        NFPA 704
        1
        2 0

        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 $34.4 2019-12-02 Buy
        Sigma-Aldrich 1329913 5-Hydroxy-L-tryptophan United States Pharmacopeia (USP) Reference Standard 4350-09-8 100mg $352.8 2019-12-02 Buy
        TCI Chemical H0531 5-Hydroxy-L-tryptophan >98.0%(HPLC)(T) 4350-09-8 1g $13 2019-12-02 Buy
        TCI Chemical H0531 5-Hydroxy-L-tryptophan >98.0%(HPLC)(T) 4350-09-8 5g $46 2019-12-02 Buy
        Alfa Aesar A13954 L-5-Hydroxytryptophan hydrate 98% 4350-09-8 0.25g $13.8 2019-12-02 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( 280)Suppliers
        Supplier Tel Fax Email Country ProdList Advantage
        Xi'an Kono chem co., Ltd., 029-86107037-8012
        sales9@konochemical.com China 304 58
        J & K SCIENTIFIC LTD. 010-82848833- ;010-82848833-
        86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
        Meryer (Shanghai) Chemical Technology Co., Ltd. 21-61259100-
        86-21-61259102 sh@meryer.com China 40268 62
        INTATRADE GmbH +49 3493/605464
        +49 3493/605470 sales@intatrade.de Germany 3579 66
        Chembest Research Laboratories Limited 021-20908456-
        021-58180499 sales@BioChemBest.com China 5982 61
        Alfa Aesar 400-610-6006; 021-67582000
        021-67582001/03/05 saleschina@alfa-asia.com China 30163 84
        TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
        021-67121385 Sales-CN@TCIchemicals.com China 24555 81
        Energy Chemical 021-58432009
        021-58436166-800 sales8178@energy-chemical.com China 44026 61
        Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18
        0086-571-85864795 sales@capotchem.com China 18228 66
        Beijing Ouhe Technology Co., Ltd 010-82967028-
        +86-10-82967029 2355560935@qq.com China 12495 60

        View Lastest Price from L-5-Hydroxytryptophan manufacturers

        Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
        2019-11-07 5-Hydroxy-L-tryptophan
        4350-09-8
        US $0.00 / mg 5mg ≥98%(HPLC) 10 g Shanghai Standard Technology Co., Ltd.
        2019-11-04 5-hydroxy-L-tryptophan
        4350-09-8
        US $60.00 / KG 10g 99.8% 10tons Hebei shuoxi biotechnology co. LTD
        2018-12-15 5-HTP
        4350-09-8
        US $8.00 / kg 1kg 98% 100KG career henan chemical co

        L-5-Hydroxytryptophan Spectrum


        4350-09-8(L-5-Hydroxytryptophan)Related Search:


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