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Brand:
AECOCHEMCAS NO.:
77-09-8Product Name:
PhenolphthaleinSynonyms:
2-[Bis(4-hydroxyphenyl)methyl]benzoic acid; 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone; 3,3-Bis(4-hydroxyphenyl)phthalideMolecular Formula:
C20H14O4MW:
318.33Packaging:
25kg/drumWelcome to buy Phenolphthalein CAS 77-09-8 from AECOCHEM,which would be your reliable partner in China.AECOCHEM is a professional chemicals supplier.If you are interested in Phenolphthalein or want to purchase from China, please send E-mail to sales@aecochemical.com.
Identification:
Product name: Phenolphthalein
CAS:77-09-8
Synonyms: 2-[Bis(4-hydroxyphenyl)methyl]benzoic acid; 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone; 3,3-Bis(4-hydroxyphenyl)phthalide
Molecular formula:C20H14O4
Molecular weight:318.33
EINECS:201-004-7
Properties：
Melting point :258-263 °C
Boiling point :417.49°C (rough estimate)
Density :1.299
Refractive index :1.5400 (estimate)
Flash point : 24 °C
Solubility : Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane.
Form : Solid
Pka: 9.4(at 25℃)
Colour Index :764
Color :White to yellow-white
PH range :8.0(colorless)-10(Red)
PH : 7.8～10.0
Water solubility :<0.1 g/100 mL
λmax:552nm, 553nm, 374nm, 205nm, 229nm, 276nm
Specification:
Characteristics :A white or almost white powder, practically insoluble in water, soluble in alcohol.
Melting Point :It melts at about 260℃
Identification :A:Positive B:Positive
Appearance of solution :The solution is clear and not more intensely coloured than reference solution Y7
Related substances :Less than 0.5%
Heavy metals :Not more than0.001%
Acidity or alkalinity :Complies
Chlorides :Not more than 0.01%
Sulphates :Not more than 0.02%
Loss on drying :Not more than 0.5%
Sulphated ash :Not more than 0.1%
Assay :98.0%-101.0%(C20H14O4)
Product Package:
Fiber drum, net weight 25kg per drum,or according to the requirements of the customers.
Product Storage:
Put in a sealed, dry and ventilated place, Guard Against Fire.
Application:
Pharmacological application: Mainly acts on the colon. After oral administration, it slowly decomposes under the action of small intestinal alkaline intestinal juice to form soluble sodium salt, thereby stimulating the inner lining of the intestinal wall, directly acting on the intestinal smooth muscle, increasing intestinal peristalsis and inhibiting at the same time. The absorption of water in the intestine causes water and electrolyte to accumulate in the colon, causing a laxative effect. Its effect is moderate, rarely causing intestinal cramps. For the treatment of habitual intractable constipation.
Some photos of shipment:
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