China Factory Sell Good Price Phthalein CAS 77-09-8

• CAS No.: 77-09-8
• Formula: C20h14o4
• EINECS: 201-004-7
• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Quality: Refined
• Model NO.: 77-09-8
• Colour: White
• MW: 318.32300
• Density: 1.27 g/cm3 at 32 °c
• Refractive Index: 1.5400 (Estimate)
• Melting Point: 1.27 g/cm3 at 32 °c
• Boiling Point: 417.49°c (Rough Estimate)
• Logp: 3.56010
• Flash(Ing) Point: 24 °c
• Transport Package: 25kg/Drum
• Specification: 99%
• Trademark: YANXI
• Origin: China
• HS Code: 29322910
• Production Capacity: 1000t/Month

Product Description

            Manufacturer Orange Powder Ferrocene CAS 102-54-5 with High Quality

Product Description

it is a weak organic acid, the molecular formula is C20H14O4, the structural formula is (C6H4OH)2COC6H4CO, in pH < 8.2 solution for colorless lactone structure, when pH > 8.2 for pink quinone structure, is a commonly used acid-base indicator. The quinone form or quinone form of it, which is very unstable in alkaline media, will slowly transform into colorless carboxylate form; When encountered with a thicker lye, it will immediately change into a colorless carboxylate form. Therefore, when the it agent is dropped into the concentrated lye, the it begins to turn red, and the red color soon recedes into colorless. it is colorless at pH below 8.2 to 0, showing an orange-yellow color in strong acids.
it is a fine white or yellowish crystal, insoluble in water but soluble in alcohol. Therefore, it is usually prepared as an alcohol solution for use. When it reagent drops into water or neutral, acidic aqueous solution, there will be a white turbidity, which is because alcohol is easily soluble in water, so that the phe nolic phthalein in the reagent is difficult to dissolve in water. it is prepared by the condensation with two molecules of under the heating of concentrated sulfuric acid. This method was discovered by Adolf von Baeyer in 1871.

 

Basic Info.

Product Name	Pheno l phthalein
Synonyms	LABOTEST-BB LT02090809;CI 764;CI NO 764 (1924);BETZ 0212;3,3-BIS(4-HYDROXYPHENYL)-1(3H)-ISOBENZOFURANONE;3,3-Bis(4-hydroxyphenyl)phthalide;3,3-BIS(P-HYDROXYPHENYL)PHTHALIDE;TIMTEC-BB SBB008868
CAS	77-09-8
MF	C20H14O4
MW	318.32
EINECS	201-004-7

 

 

Application

Acid-base indicator, non-aqueous titration indicator, chromatographic analysis; Pharmaceutical laxative, can stimulate the intestinal wall, cause intestinal peristalsis to promote defecation.
it is a chemical that is commonly used as a colorimetric pH indicator. The compound has been observed to turn orange at pH <0, clear between pH 0-8.2, fuchsia between pH 8.2-12, and clear again at a pH above 12. It has been postulated that the mutagenic effects of it at high doses can be attributed the enhancement intracellular free oxygen radicals. The compound has also been observed to induce mitotic abnormalities and micronuclei with kinetochores in vitro. In Syrian hamster embryos treated with 10-40 μM of it a significant number of chromosomal aberrations occurred at the hprt locus. On human breast cancer cells it has been observed to have weak estrogenic effects.

Packaging & Shipping

 

 

 

 

 

Company Profile

Hebei yanxi chemical co. LTD.  has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. Main products are cas: 6080-56-4, 2-phenylacetamide (cas103-81-1), After many years of efforts, we have established stable and friendly business relations with dozens of European and American pharmaceutical companies, multinational chemical companies and importers.

Our company possesses the right of self-support import & export, a strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.

 

 

 

Our Advantages

1) Timely communication, reply within 12 hours.You can leave any messages on our whatsapp or send email to us.

2)Selecting raw materials strictly,our products are the highest purity.
3)Reasonable and competitive price.
4) Free sample for your evaluation.Customers only need to undertake the shipping fee for delivery the samples to your destionation.
5)OEM/ODM Available.Trial order is available for testing after samples.
6) Packaging can be customized according to each buyers' special request.
We guarantee that your package will pass 100% through the Mexico US, UK, Australia, Netherlands, Canada, France, Germany, Spain, Belgium, Sweden, Poland, Russian, Ukraine, Kazakhstan, Czech Republic, Slovakia, Portugal.
 

We have freight forwarders in these countries, and our customs clearance company will clear your parcels without any customs issues, sometimes even 1000 kg. Door to door service. Make sure you receive 100% of the goods. Let you have a good experience of our strong freight capacity.
 

After Sales Service

 1)Best quality in your requirement
 2)Competitive price in china market
 3)Mature technical support
 4)Professional logistic support
 5 )Full experience of large numberscontainers loading in chinese sea port
 6 )Fast shipment by reputed shipping line
 7) Packing with pallet as buyer's special request
 8) Best service after shipment.
 9) Cargoes together with container after-sales service available
 10) Full experience in export
 11)Raw materials from chinese origin

 

FAQ

 Q:How can I get the price?
 A:We usually quote within 24 hours after we get your inquiry.
     If you are very urgent to get the price, please email us or contact us in other ways so that we can offer you a quote. 

 Q:What is the way you ship?
 A:Express: FedEx, UPS, EMS, DHL, USPS, TNT, DPD, Aramex etc
    Our way of shipping the products is universal and secure.
    The company name and other contents related to pharmacy are not written on the package slips.             
    The way of packing is regularly changed for a secure delivery. 
    The packages are small in order to avoid unwelcomed questions . If the order is big, then it will be divided into two or more packages.

 Q:What is your lead time?

 A:It depends on the order quantity and the season you place the order.
    Usually we can ship within 7-15 days for small quantity,and about 25 days for large quantity.

Q:Can the packages be trackable?
A:YES, we provide tracking number and you can track on internet.

Q:Where do you ship to?
A:Worldwide.
 

Q:What is your lead time?

A:It depends on the order quantity and the season you place the order.
Usually we can ship within 7-15 days for small quantity,and about 25 days for large quantity.
 

Q:Do you offer domestic shipping/remail shipping?
A:Yes we can ship to USA/UK/Canada/Australia/Germany etc warehouse first then to you.

Q:Do you ensure your packing , what about customs, what happens if the package is retained?
A:We concern a lot about our safety system, we pack the orders as secure as possible. If a package is seized at customs, reships of seized orders will be done provided you have a copy of the letter to show us. If you receive a seizure letter, please contact us immediately with a scanned copy of the seizure letter, and also a new address to have your order reshipped to.

Q:What is your payment term?

A:T/T, L/C at sight.
 

Q:Which payment options are available?
A:Bitcoin
    Western Union
    Bank wire
    MoneyGram
                                                           
Q:How do you make our business long-term and good relationship?

A:We keep good quality and competitive price to ensure our customers benefit ;
     We respect every customer as our friend and we sincerely do business and make friends with them,no matter where they come from.