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Red 21

Red 21 structure

CAS No:
15086-94-9
Formula:
C20H8Br4O5
Chemical Name:
Red 21
Synonyms:
Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one,2′,4′,5′,7′-tetrabromo-3′,6′-dihydroxy-;Fluorescein,2′,4′,5′,7′-tetrabromo-;2′,4′,5′,7′-Tetrabromo-3′,6′-dihydroxyspiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one;D and C Red No. 21;3,6-Dihydroxy-2,4,5,7-tetrabromospiro[xanthene-9,3′-phthalide];2′,4′,5′,7′-Tetrabromofluorescein;Red No. 223;Solvent Red 43;C.I. Solvent Red 43;Japan Red 223;Japan Red No. 223;Eosin acid;Eosine acid;C.I. 45380:2;D&C Red No. 21;Eosin Y spirit soluble;D&C Red 21;NSC 244436;Red 21;AMI 5;2′,4′,5′,7′-Tetrabromo-3′,6′-dihydroxyspiro[2-benzofuran-3,9′-xanthene]-1-one;477-63-4;30495-79-5;342043-92-9;732983-53-8;859629-60-0;113601-31-3;19052-67-6;722454-16-2;1043892-09-6
Categories:
Cosmetic Ingredient > Cosmetic Colorant

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Description

orange-brown powder

Bromoeosin is an organobromine compound. It derives from a fluorescein (lactone form).

Red 21 Basic Attributes

Molecular Weight：

647.89

Exact Mass：

647.89

EC Number：

241-409-6

UNII：

2730CL9N7C

NSC Number：

244436

DSSTox ID：

DTXSID3044590

HScode：

32041919

Characteristics

PSA：

93.40000

XLogP3：

6.12210

Appearance：

Liquid

Density：

1.02 g/mL at 20 °C

Melting Point：

300 °C

Boiling Point：

640.3±55.0 °C(Predicted)

Refractive Index：

1.5000 (estimate)

Water Solubility：

H2O: 0.1 g/mL, dark red

Storage Conditions：

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.

Safety Information

Transport codes：

UN 1170 3/PG 2

wgk germany：

hazard class code：

safety instructions：

26-24/25

RTECS Number：

LM5850000

Marks：

Stability/Shelf Life：

Stable. Incompatible with strong oxidizing agents.

GHS Classification：

|Warning|H302 (97.44%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P301+P312, P330, and P501|Aggregated GHS information provided by 57 companies from 4 notifications to the ECHA C&L Inventory.

Red 21 Use and Manufacturing

Uses

Biochemical research

Manufacturing Info：

Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-: ACTIVE

Use Classification：

Cosmetics -> Hair dyeing

Computed Properties

Molecular Weight:647.9
XLogP3:6.2
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:5
Exact Mass:647.70642
Monoisotopic Mass:643.71052
Topological Polar Surface Area:76
Heavy Atom Count:29
Complexity:645
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Downstream Products

Fumaric acid

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Grade: Pharmaceutical Grade

Content: 99%

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CN
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Solvent Red 43

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Grade: pharmaceutical grade

Content: 99%

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CAS No.: 15086-94-9

Grade: Industrial Grade

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Guide of Red 21

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Computed Properties
Downstream Products
Recommended Suppliers
Learn More Other Chemicals

Red 21

SDS

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