FD&C Blue No. 1 Aluminum Lake

亮蓝铝色淀

Also known as: Brilliant Blue Aluminum Lake, Pigment Blue 78, C.I. Food Blue 2:1, Food Blue No. 1 Aluminum Lake, Acid Blue 9 aluminium salt, Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, inner salt, aluminum salt, N-Ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadiene-1-ylidene]-3-sulfonatobenzenemethanaminium/aluminum,(1:x) salt, Dihydrogen (ethyl)[4-[[4-[ethyl(3-sulphonatobenzyl)amino]phenyl](2-sulphonatophenyl)methylene]cyclohexa-2,5-dien-1-ylidene](3-sulphonatobenzyl)ammonium aluminium salt, EINECS 272-939-6, FD&C Blue No. 1 Aluminum Lake, Bright Blue Aluminum Lake

FD&C Blue No. 1 Aluminum Lake (CAS 68921-42-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C37H36N2O9S3 and a molecular weight of 748.88500 g/mol. It is also known as Brilliant Blue Aluminum Lake, Pigment Blue 78 and C.I. Food Blue 2:1. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68921-42-6
Jingsj CID
J-23161-3
Molecular Formula
C37H36N2O9S3
Chinese Name
亮蓝铝色淀
Molecular Weight
748.88500 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of FD&C Blue No. 1 Aluminum Lake?

The CAS number of FD&C Blue No. 1 Aluminum Lake is 68921-42-6.

What are the molecular formula and molecular weight of FD&C Blue No. 1 Aluminum Lake?

FD&C Blue No. 1 Aluminum Lake has molecular formula C37H36N2O9S3 and molecular weight 748.88500 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "FD&C Blue No. 1 Aluminum Lake (CAS 68921-42-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23161-3 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.