Brilliant Black BN

Brilliant Black BN
Names
	IUPAC name Tetrasodium (6Z)-4-acetamido-5-oxo-6-[[7-sulfonato-4-(4-sulfonatophenyl)azo-1-naphthyl]hydrazono]naphthalene-1,7-disulfonate
	Other names C.I. Food Black 1; 1743 Black; Black PN; Blue Black BN; Brilliant Acid Black; C.I. 28440; Certicol Black PNW; Cilefa Black B; E 151; Edicol Supra Black BN; Hexacol Black PN; L Black 8000; Melan Black; Xylene Black F
Identifiers
CAS Number	2519-30-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	21159661;
ECHA InfoCard	100.017.951
EC Number	219-746-5;
E number	E151 (colours)
PubChem CID	5359750;
UNII	2WPR32U0CP ;
CompTox Dashboard (EPA)	DTXSID2020183 ;
	InChI InChI=1S/C28H21N5O14S4.4Na/c1-14(34)29-23-10-11-24(50(42,43)44)20-13-25(51(45,46)47)27(28(35)26(20)23)33-32-22-9-8-21(18-7-6-17(12-19(18)22)49(39,40)41)31-30-15-2-4-16(5-3-15)48(36,37)38;;;;/h2-13,35H,1H3,(H,29,34)(H,36,37,38)(H,39,40,41)(H,42,43,44)(H,45,46,47);;;;/q;4*+1/p-4 Key: GMMAPXRGRVJYJY-UHFFFAOYSA-J;
	SMILES CC(=O)NC1=C2C(=C(C=C1)S(=O)(=O)[O-])C=C(C(=NNC3=C4C=C(C=CC4=C(C=C3)N=NC5=CC=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-])C2=O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+];
Properties
Chemical formula	C28H17N5Na4O14S4
Molar mass	867.66 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Brilliant Black BN, Brilliant Black PN, Brilliant Black A, Black PN, Food Black 1, Naphthol Black, C.I. Food Black 1, or C.I. 28440, is a synthetic black diazo dye. It is soluble in water. It usually comes as tetrasodium salt. It has the appearance of solid, fine powder or granules. Calcium and potassium salts are allowed as well.

When used as a food dye, its E number is E151. It is used in food decorations and coatings, desserts, sweets, ice cream, mustard, red fruit jams, soft drinks, flavored milk drinks, fish paste, lumpfish caviar and other foods.[1]

E151 has been banned in the United States, Switzerland, Japan. It is approved in the European Union.[2] It was banned in Norway until 2001 when it was unbanned due to trade relationships with other countries.

It is used for staining animal by-products in category 2.

References

Brilliant Black PN concentration limits
"EU Approved additives and E Numbers". Food Standards Agency, UK.

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[1] Brilliant Black PN concentration limits

[2] "EU Approved additives and E Numbers". Food Standards Agency, UK.