Sudan red G

Structural formula
General
Surname	Sudan red G
other names	1- (2-methoxyphenylazo) -2-naphthol; CI Solvent Red 1; CI 12150; Ceresrot G; OilRed 113; Sudan R; Bold red G; Grease color red BG; C 10;
Molecular formula	C 17 H 14 N 2 O 2
Brief description	red-brown solid
External identifiers / databases
EC number	214-968-9
ECHA InfoCard	100.013.608
PubChem	14678
ChemSpider	10441568
Wikidata	Q835871
properties
Molar mass	278.31 g mol −1
Physical state	firmly
density	1.12 g cm −3
Melting point	180 ° C
solubility	practically insoluble in water; soluble in ethanol (7–8 g / L) and in vegetable oils; soluble in halogenated hydrocarbons;
Refractive index	1,550
safety instructions
GHS hazard labeling from Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary danger
H and P phrases	H: 350
	P: 280-261-305 + 351 + 338-321-405-501
Toxicological data	> 5000 mg kg −1 ( LD 50 , rat , oral ) ; > 2000 mg kg −1 ( LD 50 , rabbit , transdermal ) ;
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Sudan red G is a chemical compound from the group of azo and Sudan dyes .

Extraction and presentation

Sudan red G can be obtained by diazotization and azo coupling of o -anisidine and β-naphthol .

properties

Sudan red G is a red-brown solid which is in the form of lightfast, heat, acid and alkali-resistant, practically insoluble in water, soluble in alcohol and in vegetable oils [λ _max 500 nm, E 1% / 1 cm approx. 785 ( Methanol )].

use

Sudan red G is used to color mineral oil products, wax products such as shoe creams, floor polishes, candles, for the production of ballpoint pen pastes, inks, etc.

safety instructions

According to Appendix 3 (to Section 3) of the Cosmetics Ordinance , Sudan Red G is also approved for coloring cosmetics. The previously common use for coloring egg shells has not been permitted since 1998. The reason is that structural activity considerations suggest that the compound is genotoxic and / or carcinogenic (reductive cleavage to o -anisidine).

Web links

Commons : Sudan Dyes - Collection of Images, Videos, and Audio Files

Individual evidence

↑ ^a ^b ^c ^d ^e ^f sheet Sudan red G reagent for Ph. Eur. At Sigma-Aldrich retrieved on November 8, 2016 ( PDF ).
^ ^A ^b Carl L. Yaws: The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics . Gulf Professional Publishing, 2015, ISBN 978-0-12-801146-1 , pp. 536 ( limited preview in Google Book search).
↑ ^a ^b ^c ^d ^e ^f Entry on Ceresrot G. In: Römpp Online . Georg Thieme Verlag, accessed on November 8, 2016.
^ Gisbert Otterstätter: Coloring of Food, Drugs, and Cosmetics . CRC Press, 1999, ISBN 978-0-8247-0215-1 , pp. 112 ( limited preview in Google Book search).
↑ Entry on Sudan Red G in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on November 8, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Data sheet Sudan Red G ( Memento of the original from November 15, 2016 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. at lgcstandards, accessed March 11, 2015. @1@ 2

^ Entry on OIL PINK in the Hazardous Substances Data Bank , accessed on November 8, 2016.

^ Peter Brandt: Reports on Food Safety 2006 Nationwide Monitoring Plan; Report on pesticide residues; National reporting to the EU . Springer Science & Business Media, 2008, ISBN 978-3-7643-8762-4 , p. 66 ( limited preview in Google Book search).

[Sigma-1] ↑ ^a ^b ^c ^d ^e ^f sheet Sudan red G reagent for Ph. Eur. At Sigma-Aldrich retrieved on November 8, 2016 ( PDF ).

[Carl_L._Yaws-2] A ^b Carl L. Yaws: The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics . Gulf Professional Publishing, 2015, ISBN 978-0-12-801146-1 , pp. 536 ( limited preview in Google Book search).

[RömppOnline-3] ↑ ^a ^b ^c ^d ^e ^f Entry on Ceresrot G. In: Römpp Online . Georg Thieme Verlag, accessed on November 8, 2016.

[Gisbert_Otterstätter-4] Gisbert Otterstätter: Coloring of Food, Drugs, and Cosmetics . CRC Press, 1999, ISBN 978-0-8247-0215-1 , pp. 112 ( limited preview in Google Book search).

[CLP_100.013.608-5] Entry on Sudan Red G in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on November 8, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

[lgcstandards-6] Data sheet Sudan Red G ( Memento of the original from November 15, 2016 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. at lgcstandards, accessed March 11, 2015. @1@ 2

[HSDB-7] Entry on OIL PINK in the Hazardous Substances Data Bank , accessed on November 8, 2016.

[Peter_Brandt-8] Peter Brandt: Reports on Food Safety 2006 Nationwide Monitoring Plan; Report on pesticide residues; National reporting to the EU . Springer Science & Business Media, 2008, ISBN 978-3-7643-8762-4 , p. 66 ( limited preview in Google Book search).