Chocolate Brown Ht (Technical Grade) CAS 4553-89-3 Brown Ht; Food Brown 3

• CAS No.: 4553-89-3
• Formula: C27h18n4na2o9s2
• EINECS: 224-924-0
• Environmental Protection: No
• Color: Pale Brown to Black
• Appearance: Solid
• Model NO.: YBC078
• Type: Pharmaceutical Intermediates
• Quality: Refined
• Colour: Pale Brown to Black
• Samples: Available
• Certificates: ISO9001/SGS
• Package: 1g/5g/25g/100g/1kg/5kg/10kg/25kg
• Stocks: in Stock
• Lead Time: 5-7 Working Days
• Shelf Life: 2-3 Years
• Site Audit: Available
• Transport: Air/Express/Sea
• MOQ: 10g
• Transport Package: Drum/Bottle/Bags
• Specification: 85%
• Trademark: Yunbang
• Origin: China

Product Description

Chocolate Brown HT (Technical Grade) CAS 4553-89-3 Brown HT;Food brown 3
 

Company Informations

Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.

The company adheres to the corporate tenet of "We do not produce medicines, but help pharmaceutical companies make good medicines".

We can provide customers with customized processing, research and development services;
We can develop high-end Pharmaceutical and chemical products with high technical difficulties,high barriers and unique production processes;
We can provide 100 grams Grade, kilograms, and hundred kilograms of raw material pharmaceutical intermediates and other products.
We can perform -100°C to 300°C reaction.

R&D strength is the company's core competitiveness.Yunbangpharm has maintains a good cooperation relationship with many Universities and Research institutes locally, which can quickly transform R&D results into industrial production.

Our goal : To achieve the integrated upgrade of Pharmaceutical intermediates, raw materials and high-end chemical products, adhere to "serving pharmaceutical companies, creating our brands" to provide customers with high-quality and low-cost pharmaceutical and chemical products, realizing Win-win cooperation and common development.
 

Product Description

General description

BSA is a single polypeptide chain consisting of about 583 amino acid residues and no carbohydrates. At pH 5-7 it contains 17 intrachain disulfide bridges and 1 sulfhydryl group.

Application

Bovine serum albumin is broadly used as an additive to cell culture media, especially serum-free media. It provides a range of benefits including protection from oxidative damage and stabilization of other media components such as fatty acids and pyridoxal.
 

FAQ

1:Can I get some samples before bulk order?
A: Most products provide free samples, but the shipping cost be paid by customers.

2: What's your MOQ?
A: We can have a discussion.

3: Which kind of payment terms do you accept?
A: PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union,D/P, ETC.

4.How to place an order?
A: You can contact me through Trademanager, WhatsApp, Email and other contact methods, tell me the product and quantity you need, and then we will give you a quote.

5:How about your delivery time?
A: Generally, it will take 3 to 5 days after receiving your advance payment.

6:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.

Product analysis

Product Name:	disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
Synonyms:	1538 Brown;C.I.20285;Certicol Brown N Extra;Cetricol Brown RS;disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate;Disodium-4,4-(2,4-Dihydroxy-5-HydroxyMethyl-1,3-PhenyleneBisazo)-Di(Naphthalene-1-Sulfonate);Brown HT;1-Naphthalenesulfonic acid, 4,4-2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylenebis(azo)bis-, disodium salt
CAS:	4553-89-3
MF:	C27H18N4Na2O9S2
MW:	652.56276
EINECS:	224-924-0
Product Categories:
Mol File:	4553-89-3.mol

disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate Chemical Properties

Melting point	>300o C
density	0.816[at 20ºC]
vapor pressure	0Pa at 25ºC
storage temp.	Hygroscopic, Refrigerator, Under inert atmosphere
solubility	DMSO (Slightly, Heated, Sonicated), Metha-nol (Slightly)
form	Solid
color	Pale Brown to Black
Water Solubility	99.418g/L at 25ºC
Stability:	Hygroscopic
LogP	4.496 at 25ºC

Safety Information

Toxicity

LD50 oral in rat: > 2gm/kg

MSDS Information

 

disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate Usage And Synthesis

Uses	Chocolate Brown HT (CAS# 4553-89-3) is a synthetic organic food colourant, and a long-term carcinogen.
Preparation	4-Hydroxynaphthalene-1-sulfonic acid (2 Moore) diazo, and 4-(Hydroxymethyl)benzene-1,3-diol?coupled.
Flammability and Explosibility	Non flammable

 

Detailed Photos