α -Naphthol Orange CAS 523-44-4 Orange 1

• CAS No.: 523-44-4
• Formula: C16h11n2nao4s
• EINECS: 208-346-6
• Certification: ISO9001
• Color: Red to Very Dark Red
• Appearance: Solid
• Model NO.: YBC247
• Type: Pharmaceutical Intermediates
• Quality: Refined
• Colour: Red to Very Dark Red
• Samples: Available
• Certificates: ISO9001/SGS
• Package: 1g/5g/25g/100g/500g/10kg
• 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: BS
• Trademark: Yunbang OEM
• Origin: China

Product Description

α-Naphthol Orange CAS 523-44-4 Orange 1

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.
 

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.
 

Our Advantages

1. 90days quality guarantee for exchange.

2. For each batch order extracts, we will attach a factory Inspection Report with the goods delivery , including the BatchNo/ Date/ Test index ects; also will keep the archived extracts to ensure received by customers are the same each time.

3. Our team of experienced professionals are available online 24 hours a day to answer any questions and provide guidance on product usage and maintenance.

Product analysis

 

 

Product Name:	ORANGE I
Synonyms:	1333orange;4-((4-hydroxy-1-naphthalenyl)azo)benzenesulfonicacid,monosodiumsalt;4-((4-hydroxy-1-naphthalenyl)azo)-benzenesulfonicacimonosodiumsalt;4-((4-hydroxy-1-naphthalenyl)azo)benzenesulphonicacid,monosodiumsalt;4-[(4-hydroxy-1-naphthalenyl)azo]-benzenesulfonicacimonosodiumsalt;4-p-sulfophenylazo-1-naphtholmonosodiumsalt;4-p-sulphophenylazo-1-naphthol,monosodiumsalt;a.f.orangeno.1
CAS:	523-44-4
MF:	C16H11N2NaO4S
MW:	350.32
EINECS:	208-346-6
Product Categories:	Organics
Mol File:	523-44-4.mol

ORANGE I Chemical Properties

Melting point	260 °C (decomp)
storage temp.	Inert atmosphere,Room Temperature
solubility	DMSO (Slightly), Meth-anol (Slightly)
form	Solid
Colour Index	14600
color	Red to Very Dark Red
Merck	14,6857
BRN	3826844
IARC	3 (Vol. 8, Sup 7) 1987
EPA Substance Registry System	C.I. Acid Orange 20 monosodium salt (523-44-4)

Safety Information

Safety Statements	22-24/25
WGK Germany	3
RTECS	DB7085000
HS Code	32041200
Hazardous Substances Data	523-44-4(Hazardous Substances Data)
Toxicity	LD50 intraperitoneal in rat: 1gm/kg

MSDS Information

 

ORANGE I Usage And Synthesis

Chemical Properties	Crystalline
Uses	A labeled form of alpha-Naphthol Orange, also known as Acid Orange 20, which is an organic azo dye.
Definition	ChEBI: CI Acid Orange 20 is an organic molecular entity.
Preparation	4-Aminobenzenesulfonic acid diazo, and Naphthalen-1-ol?coupling.
Properties and Applications	orange. Soluble in water for palm light orange, slightly soluble in ethanol, aceto-ne, insoluble in most organic solvents. The strong sulfuric acid for purple, diluted into palm orange, red with purple precipitation. Its water solution to join strong hydro-chloric acid for orange brown; Add sodiu-m hydroxide in red. Used for wool, silk fiber dyeing, etc. Also used in leather dyeing and indicator.
Purification Methods	Purify the dye by dissolving it in the minimum volume of H2O, adding, with stirring, a large excess of EtOH. The salt separates as orange needles. It is collected by centrifugation or filtration, washed with absolute EtOH (3x) and Et2O (2x) in the same way and dried in a vacuum desiccator over KOH. The free acid can be recrystallised from EtOH. [Slotta & Franke Chem Ber 64 86 1931, Beilstein 16 H 275, 16 II 117, 16 IV 410.] The purity can be checked by titration with titanium chloride [Klotz J Am Chem Soc 68 2299 1946].

 

Detailed Photos