Solvent Red 25 CAS 3176-79-2 Sudan Red B C. I. Solventred25

• Customization: Available
• CAS No.: 3176-79-2
• Formula: C24h20n4o
• Model NO.: SUREST-341
• EINECS: 221-647-7
• Use: Paints, Plastics, Cosmetic, Textile, Leather, Paper, Ink
• Colour: Red
• Appearance: Powder
• Type: Synthetic
• Stock: Available
• Shelf Life: 2 Years
• Molecular Weight: 380.45
• Density: 1.19±0.1 g/cm3
• Boiling Point: 618.8±55.0 °c
• Transport Package: 25kg/Drum
• Specification: 98%min
• Trademark: Surest
• Origin: China
• HS Code: 3204170090
• Production Capacity: 1000 Tons Yearly

Product Description

Product Description

 
 

Name	Solvent Red 25
Synonyms	Sudan Red B; 1-[[3-Methyl-4-[(3-methylphenyl)azo]phenyl]azo]-2-naphthol
Molecular Structure
Molecular Formula	C24H20N4O
Molecular Weight	380.45
CAS Registry Number	3176-79-2
EINECS	221-647-7

 

Main Uses:

Sudan Red B is a synthetic organic dye known chemically as Solman Red G. It is a type of azo dye with an orange-red crystalline powder substance. Sudan Red B is almost insoluble in water, but is more soluble in organic solvents. It has good light and boil resistance and can be used to dye textiles, paper, leather and plastics. The preparation method of Sudan Red B is relatively simple, a common method is through dinitronaphthalene and 2-aminobenzaldehyde reaction, through reduction, recrystallization and other process steps to get the pure product. Although Sudan Red B is widely used in the dyeing industry, it has certain toxicity and carcinogenicity. High intake of Sudan Red B may cause damage to the human body, such as toxic effects on the liver and kidneys.

Solvent Red 25, also known as Sudan Red B, is an azo dye. It can be used in direct dyes, acid dyes, reactive dyes, metal complex dyes, disperse dyes, cationic dyes and polycondensation dyes and other synthetic dyes, for a variety of natural and synthetic fibers dyeing and printing, as well as fur, plastic, rubber, ceramic products, grease coloring.

 

 

 

 

Detailed Photos

 

 

FAQ

 

FAQ
Question 1: Can I get samples?
Answer: Yes,you can get free samples of our most products,
while the courier cost will be borne by the buyers.

Question 2: What's your MOQ?
Answer: For a express delivery order,the MOQ is usually 100 g~1 kg;
for an air transport order or sea delivery order ,the MOQ is usually 25 kgs.

Question 3: What's your delivery time?
Answer:
Orders shipped by express delivery,the delivery time is usually 5~7 working days;
Orders shipped by air transport,usually around 7~10 working days;
Orders shipped by sea , usually around 2~3 working weeks.

Question 4: What are the different payment methods?
Answer: We usually accept T/T, L/C and Western Union.

Question 5: How do you treat quality complaint?
We take quality very seriously, it is one of the founding principles of our business.
 If the quality problem actually exists, we will replace with qualified goods or refund the money.