5001-72-9
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Basic information
- Product Name: Direct Red 31
- Synonyms: disodium 7,7'-iminobis[4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate];Direct Pink 12B;2-Naphthalenesulfonic acid, 7,7-iminobis4-hydroxy-3-(phenylazo)-, disodium salt;7,7'-iminobis[4-hydroxy-3-(phenylazo)-2-naphthalenesulfonic aci disodium sa;Benzo Rhoduline Red B;C.I. Direct red 31;C.I.Direct Red 31(29100);Chloramine Rose B,Pyrazol Pink 2B
- CAS NO:5001-72-9
- Molecular Formula: C32H21N5Na2O8S2
- Molecular Weight: 713.64738
- EINECS: 225-669-8
- Product Categories: Dyes and Pigments;Organics
- Mol File: 5001-72-9.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: Direct Red 31(CAS DataBase Reference)
- NIST Chemistry Reference: Direct Red 31(5001-72-9)
- EPA Substance Registry System: Direct Red 31(5001-72-9)
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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: 5001-72-9(Hazardous Substances Data)
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5001-72-9 Usage
Properties and Applications
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3-4 4 2 1-2 1-2 AATCC 3-4 4 1 1 1-2Standard
Acid ResistanceFading
StainISO
3-4AATCC
3-4Check Digit Verification of cas no
The CAS Registry Mumber 5001-72-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,0 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.Calculate Digit Verification of CAS Registry Number 5001-72:
(6*5)+(5*0)+(4*0)+(3*1)+(2*7)+(1*2)=49
49 % 10 = 9
So 5001-72-9 is a valid CAS Registry Number.
InChI:InChI=1/C32H23N5O8S2.2Na/c38-31-25-13-11-23(15-19(25)17-27(46(40,41)42)29(31)36-34-21-7-3-1-4-8-21)33-24-12-14-26-20(16-24)18-28(47(43,44)45)30(32(26)39)37-35-22-9-5-2-6-10-22;;/h1-18,33-35H,(H,40,41,42)(H,43,44,45);;/q;2*+1/p-2/b36-29-,37-30-;;
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Direct Red 31
