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CAS 85-83-6 Sudan IV

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CAS 85-83-6 Sudan IV

CAS 85-83-6 Sudan IV
CAS 85-83-6 Sudan IV CAS 85-83-6 Sudan IV

Large Image :  CAS 85-83-6 Sudan IV

Product Details:
Place of Origin: China
Brand Name: YunbangPharm
Certification: ISO9001
Model Number: YB155
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: 1kg/Bottle, 5-25kg/Drum
Delivery Time: 5-8 working days
Payment Terms: L/C, D/A, D/P, T/T, Western Union
Supply Ability: 10Ton/Month

CAS 85-83-6 Sudan IV

Product Name: Sudan IV Cas No: 85-83-6
EINECS NO: 201-635-8 Molecular Formula: C24H20N4O
Storage Condition: Flammables Area Colour: Red Brown
Solubility: 23μg/L At 25℃ Appearance: Powder
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CAS 85-83-6 Sudan IV


Sudan IV

CAS 85-83-6 Sudan IV


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.


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.

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.



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.



Sudan IV is a synthetic dye belonging to the Sudan dye group. It is commonly used as a coloring agent in industrial applications such as the coloring of hydrocarbon solvents, oils, waxes, and plastics. Sudan IV has also been utilized in some scientific and laboratory procedures, particularly in lipid and Sudan staining techniques.


Product Name: Solvent Red 24
Synonyms: 1-((2-Methyl-4-((2-methylphenyl)azo)phenyl)azo)-2-naphthalenol;1-((4-(o-tolylazo)-o-tolyl)azo)-2-naphtho;1-((E)-(2-Methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl)diazenyl)-2-naphth;1-(4-(o-Tolylazo)-o-tolylazo)-2-naphthol;1-(4-o-tolylazo-o-tolylazo)-2-naphthol;1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-naphthaleno;2',3-Dimethyl-4-(2-hydroxynaphthylazo)azobenzene;2’,3-dimethyl-4-(2-hydroxynaphthylazo)azobenzene
CAS: 85-83-6
MF: C24H20N4O
MW: 380.44
EINECS: 201-635-8
Product Categories: Solvents and Intermediates;Azo;Organics;Solvent Dyestuff;Aromatics;Intermediates & Fine Chemicals;Pharmaceuticals
Mol File: 85-83-6.mol
Solvent Red 24 Structure
Melting point 199 °C (dec.)(lit.)
Boiling point 260°C
density 1.1946 (rough estimate)
vapor pressure 0Pa at 25℃
refractive index 1.6000 (estimate)
storage temp. Flammables area
solubility Insoluble in water; soluble in benzene, methanol
form Powder/Solid
Colour Index 26105
pka 13.52±0.50(Predicted)
color Red Brown
Water Solubility 23μg/L at 25℃
λmax 520 nm, 357 nm
Merck 14,8393
BRN 709018
Stability: Stable. Incompatible with strong oxidizing agents.
Biological Applications Detecting atherosclerosis; diapers; skin care products; shampoos; hair colors; stents; dental impression materials
LogP 6.66
IARC 3 (Vol. 8, Sup 7) 1987
NIST Chemistry Reference O-tolylazo-o-tolylazo-beta-naphthol(85-83-6)
EPA Substance Registry System C.I. Solvent Red 24 (85-83-6)
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Contact Details
Hunan Yunbang Biotech Inc.

Contact Person: Maggie Ma

Tel: +0086 188 7414 9531

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