![2H-1-benzopyran-6-ol, 3,4-dihydro-2,5,7,8-tetramethyl-2- (4,8,12-trimethyltridecyl) -, [2R- [2R * (4R *, 8R *)]] - CAS 59-02-9](http://bsg-i.nbxc.com/product/9f/b2/08/119323934c4398f80eb34e6f3c.jpg@4e_360w_360h.src)
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Model: TF-2010
merk: Tianfu
verpakkingen: Als verzoek van de koper
produktiviteit: 100Ton
vervoer: Ocean,Land,Air,DHL，TNT
Plaats van herkomst: China
Ondersteuning over: 50Ton
Certificaat: ISO
Haven: Shanghai port,Qingdao port
betaling Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Fenolftaleïne is een chemische verbinding met de formule C20H14O4 en wordt vaak in steno-notatie als "HIn" of "phph" geschreven. Wordt vaak gebruikt in titraties, kleurloos in zure oplossingen en roze in basisoplossingen. Als de concentratie van de indicator bijzonder sterk is, kan deze paars lijken. Bij sterk basische oplossingen ondergaat de roze kleur van fenolftaleïne een nogal langzame fadingreactie en wordt opnieuw kleurloos.
|
Items |
Standards |
Results |
|
Characteristics |
A white or almost white powder ,practically insoluble in water ,soluble in alcohol |
Conform |
|
Melting temperature |
≥260℃ |
260.5℃~262.6℃ |
|
Identification |
A Positive B Positive |
A Positive B Positive |
|
Appearance of solution |
The solution is clear and not more intensely coloured than reference solution Y7 |
Complies |
|
Related substances |
Less than 0.5% |
< 0.5% |
|
Heavy metals |
≤10ppm |
<10ppm |
|
Arsenic |
≤8ppm |
<8ppm |
|
Acidity or Alkalinity |
Complies |
Complies |
|
Chlorides |
≤100ppm |
<100ppm |
|
Sulphates |
≤200ppm |
<200ppm |
|
Organic volatile impurities |
pass |
pass |
|
Chromatographic impurities |
≤1.0% |
<1.0% |
|
Fluoran |
To pass test |
Complies |
|
Loss on drying |
≤0.50% |
0.10% |
|
Sulphated ash (Residue on ignition) |
≤0.10% |
0.02% |
|
Assay |
98.0%~101.0% (C20H14O4) |
99.8% |
|
Remark |
Storage condition: Well closed container, store protected from light |
|
Product Categorie : Farmaceutisch materiaal > Farmaceutische tussenproducten
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.