ChemicalBook > CAS DataBase List > DIRECT RED 80

DIRECT RED 80

Product Name: DIRECT RED 80
CAS No.: 2610-10-8
Chemical Name: DIRECT RED 80
Synonyms: CI 35780;SIRIUS RED;CI NO 35780;Fast Red BA;DIRECT RED 80;Duaazol Red B;picrosiriusred;Direct Red F3B;SIRIUS RED F3B;Sirius Rosa BB
CBNumber: CB3126376
Molecular Formula: C45H33N10NaO21S6
Formula Weight: 1265.16
MOL File: 2610-10-8.mol

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DIRECT RED 80 Property

Density: 1.625[at 20℃]
vapor pressure: 0Pa at 25℃
storage temp.: room temp
solubility: DMF: Slightly Soluble
DMSO: Slightly SolublePBS (pH 7.2): 10 mg/ml
form: powder
Colour Index: 35780
pka: pK1-6 < 2; pK7.8 >13(at 25℃)
color: Dark green to Dark red to Black
Water Solubility: Partly soluble in water, very slightly soluble in ethanol, and cellosolve. Insoluble in many organic solvents.
λmax: 528 nm
ε(extinction coefficient): ≥12000 at 277-283nm in H2O
≥15000 at 223-235nm in H2O
≥32000 at 524-530nm in H2O
Merck: 14,8548
BRN: 8185575
InChIKey: YIQKLZYTHXTDDT-IJPLDVMMSA-H
LogP: -2.82 at 20℃
CAS DataBase Reference: 2610-10-8
EPA Substance Registry System: C.I. Direct Red 80, hexasodium salt (2610-10-8)

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Safety

Safety Statements: 22-24/25
WGK Germany: 3
TSCA: Yes
HS Code: 2927.00.3000

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 365548
Product name: Direct Red 80
Purity: Dye content 25%
Packaging: 5g
Price: $48.3
Updated: 2025/07/31

Sigma-Aldrich

Product number: 365548
Product name: Direct Red 80
Purity: Dye content 25%
Packaging: 25g
Price: $155
Updated: 2025/07/31

TCI Chemical

Product number: D4132
Product name: Direct Red 80 [for Biochemical Research]
Packaging: 5G
Price: $33
Updated: 2025/07/31

TCI Chemical

Product number: D3273
Product name: Direct Red 80
Packaging: 25g
Price: $61
Updated: 2025/07/31

TRC

Product number: D494825
Product name: Direct Red 80
Packaging: 5g
Price: $60
Updated: 2021/12/16

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DIRECT RED 80 Chemical Properties,Usage,Production

Chemical Properties

Reddish brown powder. Soluble in water, solubility in water (60℃) 30g/L. Aqueous solution is bluish red to magenta, adding concentrated hydrochloric acid produces purple precipitate; adding concentrated sodium hydroxide solution is magenta purple. Difficult to dissolve in ethanol, ethylene glycol ether, insoluble in other organic solvents. Blue in concentrated sulfuric acid, bluish red to purple after dilution. Blue in concentrated nitric acid.

Uses

Stain for connective tissue. Dye for cellulose fibers.

Uses

Direct red 80 is a dye useful as a cardiac muscle stain and as a model compound in adsorption studies. It has also been utilized to compare efficacy of textile dye removal in aqueous solutions.

Definition

ChEBI: An organic sodium salt resulting from the formal condensation of Sirius red F3B (acid form) with six equivalents of sodium hydroxide. A polyazo dye used principally in staining methods for collagen and amyloid.

Flammability and Explosibility

Non flammable

Properties and Applications

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fading	Stain	Fading	Stain
ISO	4	3	4-5	3		3
AATCC	5	2	4-5	3		3

References

[1] L. C. U. JUNQUEIRA R. R B G Bignolas. Picrosirius staining plus polarization microscopy, a specific method for collagen detection in tissue sections[J]. Journal of Molecular Histology, 1979, 11 4: 447-455. DOI: 10.1007/bf01002772
[2] R W DAPSON. Certification procedures for sirius red F3B (CI 35780, Direct red 80).[J]. Biotechnic & Histochemistry, 2011, 86 3: 133-139. DOI: 10.3109/10520295.2011.570277

DIRECT RED 80 Preparation Products And Raw materials

Raw materials

Aniline-2-sulfonic acid Sulfanilic acid

Preparation Products

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View Lastest Price from DIRECT RED 80 manufacturers

Hubei Lidu New Material Technology Co., Ltd

Product: DIRECT RED 80 2610-10-8
Price: US $0.00-0.00/g
Min. Order: 10g
Purity: 99%
Supply Ability: 20tons
Release date: 2024-09-20

2610-10-8, DIRECT RED 80Related Search:

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CI NO 35780

DIRECT RED 80

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Ambidirect Red 3BL

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Covalene Brilliant Red F3B

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picrosiriusred

2-Naphthalenesulfonic acid, 7,7-(carbonyldiimino)bis4-hydroxy-3-2-sulfo-4-(4-sulfophenyl)azophenylazo-, hexasodium salt

Amanil Fast Red 8BLN

C.I.Direct Red 80(35780)

Diazol Light Red 3B

Duaazol Red B

Solar Brilliant Red BA

Sumilight Red F3B

hexasodium 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[[2-sulphonato-4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate]

Direct Red 5BLL

Direct Red F3B

Direct Red 80, AR

2-Naphthalenesulfonicacid,7,7'-(carbonyldiimino)bis[4-hydroxy-3-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-,sodium salt (1:6)

4,4'-[Carbonylbis[imino[1-hydroxy-3-(sodiooxysulfonyl)naphthalene-6,2-diyl]azo[3-(sodiooxysulfonyl)-4,1-phenylene]azo]]bis(benzenesulfonic acid sodium) salt

7,7'-Ureylenebis[4-hydroxy-3-[[2-sodiosulfo-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-2-sulfonic acid sodium] salt

SIRIUS RED

SIRIUS RED F3B

SIRIUS RED F3BA

SIRIUS RED F3BA SOLUTION

2-naphthalenesulfonicacid,7,7’-(carbonyldiimino)bis[4-hydroxy-3-[[2-sulfo-4-[

2-Naphthalenesulfonicacid,7,7’-(carbonyldiimino)bis[4-hydroxy-3-[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-,hexasodiumsalt

Direct Red 80 [for Biochemical Research]

Sirius Rosa BB

Direct Research

DIRECT RED 80 ISO 9001：2015 REACH

C.I.Direct Red 80:C.I.35780

Sirius scarlet / direct red 80

Sirius Red Stain Kit

Hexasodium 4-hydroxy-7-(3-(5-hydroxy-7-sulfonato-6-((2-sulfonato-4-((4-sulfonatophenyl)diazenyl)phenyl)diazenyl)naphthalen-2-yl)ureido)-3-((2-sulfonato-4-((4-sulfonatophenyl)diazenyl)phenyl)diazenyl)naphthalene-2-sulfonate

Direct Red 80【365548】

Dye content 25 %

2610-10-8

C45H26N10O21S66Na

C45H32N10P21S6Na6

C45H32N10O21S6

C45H26N10Na6O21S6

C45H32N10O21S66Na

Organics