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3441-14-3

Basic Information
CAS No.: 3441-14-3
Name: 2-Naphthalenesulfonicacid,3-[2-[4-(acetylamino)phenyl]diazenyl]-4-hydroxy-7-[[[[5-hydroxy-6-(2-phenyldiazenyl)-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-,sodium salt (1:2)
Molecular Structure:
Molecular Structure of 3441-14-3 (2-Naphthalenesulfonicacid,3-[2-[4-(acetylamino)phenyl]diazenyl]-4-hydroxy-7-[[[[5-hydroxy-6-(2-phenyldiazenyl)-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-,sodium salt (1:2))
Formula: C35H25N7Na2O10S2
Molecular Weight: 813.77
Synonyms: 2-Naphthalenesulfonicacid,3-[[4-(acetylamino)phenyl]azo]-4-hydroxy-7-[[[[5-hydroxy-6-(phenylazo)-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-,disodium salt (9CI);Benzo Fast Scarlet 4BS (6CI);C.I. Direct Red 23 (7CI);Aizen PrimulaScarlet 4BSH;Benzo Fast Scarlet 4BSA-CF;C.I. 29160;Chloramine Fast Scarlet 4B;Chloramine Fast Scarlet SE;Chrome Leather Scarlet SE;Columbia Fast Scarlet 4BS;Diacotton FastScarlet 4BS;Diamine Fast Scarlet 4BS;Diphenyl Fast Scarlet RS;Diphenyl Scarlet RS;Direct AcidFast Scarlet 4BS;Direct Brilliant Red 4A;DirectFast Scarlet 4B;Direct Fast Scarlet 4BS;Direct Fast Scarlet 4BSN;Direct Red 4BS;DirectScarlet;Direct Scarlet 4BS;Direct Scarlet Lightfast;Erie Fast Scarlet SCB;Fenamin Fast Scarlet 4BS;Hispamin Fast Scarlet 4BS;Kayaku Direct Fast Scarlet 4BS;Levacell Scarlet 4BS;Libia Scarlet 4BS;Nyanza Fast Scarlet 4BSA;Orbamin Scarlet 4BS;Paramine Fast Scarlet 4BS;Pheno Fast Scarlet 4BSY;Polycor Red SE;Red EMBL;Scarlet 4BS;Solar Red 4BSI;Wogenal Scarlet CB;
EINECS: 222-348-4
Density: 1.606g/cm3
Melting Point:
Boiling Point:
Flash Point:
Solubility:
Appearance:
Hazard Symbols:
Risk Codes:
Safety:
Transport Information:
PSA: 291.29000
LogP: 10.02620
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Chemistry

Molecule structure of Direct red 23 (CAS NO.3441-14-3) :

IUPAC Name: disodium 4-oxo-3-[[4-(2-oxoethylamino)phenyl]hydrazinylidene]-6-[[(6E)-5-oxo-6-
(phenylhydrazinylidene)-7-sulfonatonaphthalen-2-yl]carbamoylamino]naphthalene-2-sulfonate 
Molecular Weight: 813.72344 g/mol
Molecular Formula: C35H25N7Na2O10S2
Appreance: purple-red powder
H-Bond Donor: 5
H-Bond Acceptor: 15
Rotatable Bond Count: 9
Tautomer Count: 585
Exact Mass: 813.089971
MonoIsotopic Mass: 813.089971
Topological Polar Surface Area: 268
Heavy Atom Count: 56 
Complexity: 1780
Canonical SMILES: C1=CC=C(C=C1)NN=C2C(=CC3=C(C2=O)C=CC(=C3)NC(=O)NC4=CC5=C(C=C4)C=C(C(=
NNC6=CC=C(C=C6)NCC=O)C5=O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
Isomeric SMILES: C1=CC=C(C=C1)N/N=C\2/C(=CC3=C(C2=O)C=CC(=C3)NC(=O)NC4=CC5=C(C=C4)C=C(C(=NNC6=CC=C(C=C6)NCC=O)C5=O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
InChIKey: NTZBPMQAAGEDKS-HLBGQXDOSA-L
EINECS: 222-348-4
Product Categories: Dyes and Pigments; Organics; D; Stains and Dyes; Stains&Dyes, A to

Uses

 Direct red 23 (CAS NO.3441-14-3) can be used for cotton, viscose fabric dyeing and printing, but are used for viscose fabrics more and cotton fabrics using less, to yellow red. Dyeing rate is good, poor dye transfer, for salt-sensitive. Stained by the dye-fixing agent Y treatment, the wet fastness is not satisfactory. Red dye can be used alone, Qian Hong, may also be used to fight dyed yellow, orange, red, brown and other colors. Can be used for dyeing silk, wool, linen and other fabrics and silk fabric printing. For cotton, viscose blended fabric dyeing, silk, wool color yield lighter, nylon severe staining, 2 cellulose acetate, polyester micro-staining.

Production

 Aniline and p-amino acetophenone by diazotization, the acid were coupled with the scarlet and then by ammonium sulfate precipitation, filtration and drying derived. Consumption of raw materials (kg/t) aniline 55 scarlet acid (100%) 330 pairs of amino acetanilide (100%) 95 hydrochloric acid (31%) 380 Sodium nitrite (100%) 110 soda ash (industrial) 170 salt 210 Sodium hydroxide ( 100%) 85.

Toxicity Data With Reference

mouse LD50 intraperitoneal 380mg/kg (380mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

KIDNEY, URETER, AND BLADDER: OTHER CHANGES IN URINE COMPOSITION

SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"
Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.
mouse LD50 oral > 5gm/kg (5000mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

KIDNEY, URETER, AND BLADDER: OTHER CHANGES IN URINE COMPOSITION

SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"
Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.
rat LD50 intraperitoneal 960mg/kg (960mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

KIDNEY, URETER, AND BLADDER: OTHER CHANGES IN URINE COMPOSITION

SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"
Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.
rat LD50 oral > 5gm/kg (5000mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

KIDNEY, URETER, AND BLADDER: OTHER CHANGES IN URINE COMPOSITION

SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"
Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.

Safety Profile

WGK Germany: 2
RTECS: QK1237500

Specification

 Direct red 23 (CAS NO.3441-14-3) is also called Airedale Scarlet 4BD ; Aizen Primula Scarlet 4BSH ; Benzanil Fast ; Scarlet 4BSN ; Benzo Fast Scarlet 4BS (6CI) ; C.I. Direct Red 23 (VAN) ; C.I. Direct Red 23, disodium salt ; Chlorazol Fast Scarlet 4BSP ; Chrome Leather Scarlet SE ; Columbia Fast Scarlet 4BS ; Diazamine Fast Scarlet 4BS ; Diphenyl Scarlet RS ; Direct Brilliant Red 4A ; Direct Fast Scarlet 4B ; Direct Scarlet Lightfast ; Direct Scarlet SE ; Phenamine Fast Scarlet 4BS ; Wogenal Scarlet CB ;2-Naphthalenesulfonic acid, 3-((4-(acetylamino)phenyl)azo)-4-hydroxy-
7-((((5-hydroxy-6-(phenylazo)-7-sulfo-2- naphthalenyl)amino)carbonyl)amino)-, disodium salt ; 2-Naphthalenesulfonic acid, 3-(2-(4-(acetylamino)phenyl)diazenyl)-4- hydroxy-7-((((5-hydroxy-6-(2-phenyldiazenyl)-7-sulfo-2-naphthalenyl)amino)carbonyl)amino)-, sodium salt (1:2) . Water-soluble of Direct red 23 (CAS NO.3441-14-3) is medium and water solution was bright red. Its solution add dilute sulfuric acid slowed the blue, add concentrated hydrochloric acid produces a red wine sediment, plus concentrated alkali turn red orange brown. Slightly soluble in ethanol, orange, and do not dissolve in acetone. In concentrated sulfuric acid was in the red to magenta, orange, diluted turn brown; in concentrated nitric acid has orange-yellow precipitate produced; do not dissolve in concentrated alkali; soluble in concentrated ammonia was bright red. Copper ions when relying stained darker shade, shade no change in case of iron.