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CAS 2118-39-0

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Food Black 2

Description:
Food Black 2, also known by its CAS number 2118-39-0, is a synthetic dye primarily used in the food industry to impart a black color to various products. It belongs to the class of azo dyes, which are characterized by the presence of one or more azo groups (-N=N-). This compound is water-soluble, making it suitable for use in aqueous food products. Food Black 2 is often utilized in confectionery, beverages, and processed foods to enhance visual appeal. Its stability under various pH conditions and resistance to light degradation are notable characteristics, allowing it to maintain color integrity during storage and processing. However, like many synthetic dyes, its use is subject to regulatory scrutiny due to potential health concerns, including allergic reactions in sensitive individuals. As with all food additives, it is essential to adhere to safety guidelines and regulations set by food safety authorities to ensure consumer safety.
Formula:C26H19N5O13S4·4Na
InChI:InChI=1S/C26H19N5O13S4.4Na/c27-20-12-18-13(9-23(20)47(39,40)41)10-24(48(42,43)44)25(26(18)32)31-30-22-8-7-21(17-6-5-16(11-19(17)22)46(36,37)38)29-28-14-1-3-15(4-2-14)45(33,34)35;;;;/h1-12,32H,27H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44);;;;
InChI key:InChIKey=PBBYAQOETDZGAU-UHFFFAOYSA-N
SMILES:N(=NC=1C(S(=O)(=O)O)=CC2=C(C1O)C=C(N)C(S(=O)(=O)O)=C2)C=3C4=C(C(N=NC5=CC=C(S(=O)(=O)O)C=C5)=CC3)C=CC(S(=O)(=O)O)=C4.[Na]
Synonyms:
  • 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[2-[7-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:4)
  • 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, tetrasodium salt
  • 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo-4-[(p-sulfophenyl)azo]-1-naphthyl]azo]-, tetrasodium salt
  • Black 7984
  • Black No. 2
  • C Black 7
  • Ci 27755
  • Daiwa Black FS 20
  • E 152
  • E 152 (dye)
  • See more synonyms
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