Nitroso R Salt CAS 525-05-3 Disodium 1-Nitroso-2-Naphthol-3, 6-Disulfonate Monohydrate

• Customization: Available
• CAS No.: 525-05-3
• Formula: C10h8nnao8s2
• Model NO.: YBC288
• EINECS: 208-369-1
• Certification: ISO 9001
• Color: Yellow to Orange
• Appearance: Crystalline Powder
• Type: Pharmaceutical Intermediates
• Quality: Refined
• Colour: Light Yellow to Yellow
• Samples: Available
• Certificates: ISO9001/SGS
• Package: 1g/5g/25g/100g/500kg/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: AR, 99.0%
• Trademark: Yunbang OEM
• Origin: China

Product Description

Nitroso R Salt CAS 525-05-3  Disodium 1-Nitroso-2-naphthol-3,6-disulfonate Monohydrate

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:	1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
Synonyms:	LABOTEST-BB LT00454615;DISODIUM 1-NITROSO-2-NAPHTHOL-3,6-DISULFONATE;DISODIUM 3-HYDROXY-4-NITROSO-2,7-NAPHTHALENEDISULFONATE;NITROSO R SALTNITROSO R SALTNITROSO R SALT;3-HYDROXY-4-NITROSO-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT;1-Nitroso-2-naphthol-3,6-disul;1-Nitroso-2-naphthol-3,6-disulfonicacidsodiumsalt;1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
CAS:	525-05-3
MF:	C10H8NNaO8S2
MW:	357.28
EINECS:	208-369-1
Product Categories:	Intermediates of Dyes and Pigments
Mol File:	525-05-3.mol

1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT Chemical Properties

Melting point	>300 °C(lit.)
solubility	Slightly soluble in ethanol.
form	Crystalline Powder
color	Yellow to orange
Water Solubility	almost transparency
Merck	14,6644
BRN	3643930
CAS DataBase Reference	525-05-3(CAS DataBase Reference)
EPA Substance Registry System	2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-nitroso-, disodium salt (525-05-3)

Safety Information

Hazard Codes	Xn
Risk Statements	20/21/22
Safety Statements	22-24/25
WGK Germany	3
RTECS	QJ6480000
TSCA	Yes
HS Code	29089990

 

1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT Usage And Synthesis

Chemical Properties	YELLOWISH-ORANGE TO YELLOW-BROWN CRYST. POWDER
Uses	As a reagent for cobalt and potassium.
Uses	1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt is the most sensitive determination of trace cobalt reagents used for determination of cobalt and potassium-sensitive reagents.
Purification Methods	Purify the salt by dissolution in aqueous alkali and precipitation by addition of HCl. The pKa is 7.13. [Oka & Miyamoto J Chem Soc Jpn (Pure Chem Sectn) 76 672 1955 (Chem Abstr 11882 1956I), Beilstein 11 IV 669.]

 

Detailed Photos