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M4758

Sigma-Aldrich

(±)-6-Methyl-5,6,7,8-tetrahydropterine dihydrochloride

~95% (TLC)

Sinonimo/i:

6-MPH4, DL-2-Amino-4-hydroxy-6-methyl-5,6,7,8-tetrahydropteridine dihydrochloride

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About This Item

Formula empirica (notazione di Hill):
C7H11N5O · 2HCl
Numero CAS:
69113-63-9
Peso molecolare:
254.12
Beilstein:
5648114
Numero MDL:
MFCD00058175
Codice UNSPSC:
12352204
ID PubChem:
24896941
NACRES:
NA.51

Saggio

~95% (TLC)

Livello qualitativo

200

Temperatura di conservazione

−20°C

Stringa SMILE

Cl.Cl.CC1CNc2nc(N)nc(O)c2N1

InChI

1S/C7H11N5O.2ClH/c1-3-2-9-5-4(10-3)6(13)12-7(8)11-5;;/h3,10H,2H2,1H3,(H4,8,9,11,12,13);2*1H
MKQLORLCFAZASZ-UHFFFAOYSA-N

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Categorie correlate

Applicazioni

6-MPH4 is used to study mechanisms of nitric oxide (NO) synthase and free radical induced L-DOPA release from striatal tissue.

Azioni biochim/fisiol

Synthetic cofactor for tyrosine hydrolase; also cofactor for phenylalanine and tryptophan hydroxylases; less activity than the natural cofactor, BH4

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

Certificati d'analisi (COA)

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L-Tryptophan reagent grade, ≥98% (HPLC)

Sigma-Aldrich

T0254

L-Tryptophan

M Bauer et al.
Journal of neurochemistry, 82(5), 1300-1310 (2002-10-03)
Glial cell line-derived neurotrophic factor (GDNF) protects dopaminergic neurones against toxic and physical damage. In addition, GDNF promotes differentiation and structural integrity of dopaminergic neurones. Here we show that GDNF can support the function of primary dopaminergic neurones by triggering
Elizabeth A Gaskell et al.
PloS one, 4(3), e4801-e4801 (2009-03-12)
The genome of the protozoan parasite Toxoplasma gondii was found to contain two genes encoding tyrosine hydroxylase; that produces L-DOPA. The encoded enzymes metabolize phenylalanine as well as tyrosine with substrate preference for tyrosine. Thus the enzymes catabolize phenylalanine to
M Naoi et al.
Journal of chromatography, 427(2), 229-238 (1988-06-03)
A simple assay procedure for tyrosine hydroxylase activity in crude tissue samples was devised that requires minimal sample preparation and use of high-performance liquid chromatography with coulometric electrochemical detection. After incubation of enzyme samples, such as human brain homogenates or
J R Bostwick et al.
Analytical biochemistry, 192(1), 125-130 (1991-01-01)
A radiometric assay for tyrosine hydroxylase employing a coupled nonenzymatic decarboxylation of L-[14C]Dopa formed from L-[14C]tyrosine has been adapted for performance in a 96 microwell culture plate. The method uses an easily manufactured plate holder to compress blotting paper impregnated
F García-Molina et al.
Biochimica et biophysica acta, 1794(12), 1766-1774 (2009-08-22)
There is controversy in the literature concerning the action of tetrahydropterines on the enzyme tyrosinase and on melanogenesis in general. In this study, we demonstrate that tetrahydropterines can inhibit melanogenesis in several ways: i) by non-enzymatic inhibition involving purely chemical
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