Vat Orange 1

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| ImageFile = VatOrange1.png

| ImageSize = 200px

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|Section1={{Chembox Identifiers

| CASNo = 3564-71-4

| CASNo_Ref = {{cite web |title=VAT ORANGE 1 (C.I. 59105) S944378 |url=https://www.sigmaaldrich.com/catalog/product/aldrich/s944378 |website=Sigma-Aldrich}}{{Cascite|changed|}}

| ChemSpiderID = 2121280

| PubChem = 2844775

| StdInChI=1S/C24H10Br2O2/c25-11-1-3-13-15-5-7-18-22-16(14-4-2-12(26)10-20(14)24(18)28)6-8-17(21(15)22)23(27)19(13)9-11/h1-10H

| StdInChIKey = SMLJXADQTZYMKX-UHFFFAOYSA-N

| SMILES = C1=CC2=C(C=C1Br)C(=O)C3=CC=C4C5=C(C=C(C=C5)Br)C(=O)C6=C4C3=C2C=C6

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|Section2={{Chembox Properties

| C=24 | H=10 | Br=2 | O=2

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|Section3={{Chembox Hazards

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Vat Orange 1 is an orange-hue synthetic vat dye. It is prepared by dibromination of Dibenzpyrenequinone, also known as Vat Yellow 4.{{cite web |url=http://www.worlddyevariety.com/vat-dyes/vat-orange-1.html|title=Vat Orange 1}}