61724-04-7
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Basic information
- Product Name: Acid Brown 21
- Synonyms: Acid Brown 21;C.I.AcidBlack21;NEUTER BROWN BRL;Brown BRL;C.I.Acid Brown 21;Polfalan Brown TLN
- CAS NO:61724-04-7
- Molecular Formula: C19H18N4O5S
- Molecular Weight: 414.43
- EINECS: N/A
- Product Categories: N/A
- Mol File: 61724-04-7.mol
- Article Data: 0
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: Acid Brown 21(CAS DataBase Reference)
- NIST Chemistry Reference: Acid Brown 21(61724-04-7)
- EPA Substance Registry System: Acid Brown 21(61724-04-7)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 61724-04-7(Hazardous Substances Data)
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61724-04-7 Usage
Preparation
3-Amino-4-hydroxy-N-methylbenzenesulfonamide diazo, and N-(7-hydroxynaphthalen-1-yl)acetamide coupling, and the other will be 3-Amino-4-hydroxybenzenesulfonamide diazo, and 1-(4-Chlorophenyl)-3-methyl-1H-pyrazol-5(4H)-one?coupling, and then turn it into 1:2 chromium complex.Properties and Applications
red light brown. Brown powder. The strong sulfuric acid for red sauce, diluted solution for red brown; No change in strong hydrochloric acid, diluted into shallow brown solution, and the precipitation; In the nitric acid for brown, sediment can dilute; In the thick of sodium hydroxide solution no change after dilute for brown. Water solution is brown. General for loose hair, tops and article polyamide, less used alone. Also used PVA fabric and dimension / cotton, wool / rayon blended fabric dyeing and printing, but also for leather dyeing. Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 6-7 5 5 5 5 5 4-5 4-5Standard
Light FastnessFading
StainISO
6-7Check Digit Verification of cas no
The CAS Registry Mumber 61724-04-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,7,2 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.Calculate Digit Verification of CAS Registry Number 61724-04:
(7*6)+(6*1)+(5*7)+(4*2)+(3*4)+(2*0)+(1*4)=107
107 % 10 = 7
So 61724-04-7 is a valid CAS Registry Number.
61724-04-7Upstream product
61724-04-7Downstream Products
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Acid Brown 21
