English name: Ninhydrin; 1,2,3-Indantrione hydrate; 2,2-Dihydroxyinden-1,3-dione; 2,2-Dihydroxy-1H-indene-1,3(2H)-dione; Triketohydrindene hydrate;Trioxohydrindene monohydrate

Appearance: White or light yellow crystalline or crystalline powder. Can absorb moisture and clump. Gradually change color when exposed to light or air. It turns red at 125 ºC, expands in volume at 139 ºC, and decomposes at 241 ºC. Soluble in water and ethanol, slightly soluble in ether and c-h-l-o-r-o-f-o-r-m. The minimum lethal dose (rat, oral) is 250mg/kg. It is stimulating.

Ninhydrin hydrate is the hydrate of Indene Tripone. Molecular formula C9H6O4. Molecular weight 178.14. Light yellow columnar crystals. Melting point 241 ºC (decomposition). Heat to above 100 ºC and the color will turn red. Easy to dissolve in water and ethanol, slightly soluble in ether and chloroform. Indene ketone can be synthesized by cyclization, hydrolysis, and decarboxylation of diethyl phthalate and ethyl acetate, followed by oxidation and hydration with selenium dioxide

Ninhydrin hydrate can be used as an analytical reagent to identify substances such as amino acids, proteins, peptides, vitamin C. When hydrated ninhydrin reacts with these substances, a specific color change occurs, such as dark blue or purple, which is called the ninhydride reaction. This reaction is very sensitive and can be used for quantitative determination of amino acid content in samples, or as a color reagent for qualitative and quantitative determination when separating amino acids.

Ninhydrin hydrate is a sensitive colorimetric reagent for proteins, amino acids, and peptones. Indene-1,3-dione has two additional hydroxyl substituents at position 2. Hydrated indole-3-acetic acid has the function of serving as a color indicator and human metabolite.

Sinezimboni eziningi zekhwalithi ephezulu ngokubambisana okujulile, ezingakunikeza ngemikhiqizo yekhwalithi ephezulu namanani ancintisanayo. Futhi singanikeza izaphulelo zokuthenga ngobuningi.Futhi sibambisana nezinkampani eziningi ezichwepheshile zokudlulisa impahla, zingaletha imikhiqizo ngokuphepha nangokushelela ezandleni zakho. Isikhathi sokulethwa cishe yizinsuku ezi-3-20 ngemuva kokuqinisekiswa kwenkokhelo.

1. Ingabe uyimboni noma inkampani yokuhweba?
Siyimboni ehlanganisa i-comnay kanye nezohwebo, sinikeza isevisi eyodwa-stop.OEM ingamukelwa.

2. Uyawahlinzeka ngamasampula? Ingabe imahhala noma ingeziwe?
Amasampula wamahhala.Imali yesampula yempahla idinga ukukhokhwa eceleni kwakho.

3. Ingabe unazo izitifiketi ezihlobene nokulawulwa kwekhwalithi?
Isitifiketi se-ISO 9001:2008 sokuqinisekisa ikhwalithi.

4. Yini okufanele ngiyinikeze ukuze ngithole ikhotheshini?
I-Pls isazise ngohlobo lomkhiqizo oludingayo, inani le-oda, ikheli kanye nezidingo ezithile. Ikhotheshini izokwenzelwa inkomba yakho ngokuhamba kwesikhathi.

5. Hlobo luni lwendlela yokukhokha olukhethayo? Hlobo luni lwamagama olwamukelwayo?
Imigomo Eyamukelwe Yokulethwa: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD;EUR
Uhlobo Lwenkokhelo olwamukelwe: T/T,Western Union; I-Paypal, Isiqinisekiso Sokuhweba.
Ulimi olukhulunywayo:IsiNgisi.