MedKoo Cat#: 596146 | Name: FD&C Yellow No. 5 Aluminum Lake
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

FD&C Yellow No. 5 Aluminum Lake is a synthetic lemon yellow azo dye primarily used as a food coloring.

Chemical Structure

FD&C Yellow No. 5 Aluminum Lake
FD&C Yellow No. 5 Aluminum Lake
CAS#12225-21-7

Theoretical Analysis

MedKoo Cat#: 596146

Name: FD&C Yellow No. 5 Aluminum Lake

CAS#: 12225-21-7

Chemical Formula: C16H9AlN4O9S2

Exact Mass: 0.0000

Molecular Weight: 492.37

Elemental Analysis: C, 39.03; H, 1.84; Al, 5.48; N, 11.38; O, 29.24; S, 13.02

Price and Availability

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25g USD 450.00 2 weeks
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Synonym
FD&C Yellow No. 5 Aluminum Lake; C.I. Food Yellow 4:1; Japan Food Yellow No. 4 aluminum lake; C.I. 19140:1; Pigment Yellow 100; EC 235-428-9; TARTRAZINE ALUMINUM LAKE
IUPAC/Chemical Name
aluminum (E)-5-oxo-1-(4-sulfonatophenyl)-4-((4-sulfonatophenyl)diazenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate
InChi Key
KEHJATRTHJTLNR-ZAGWXBKKSA-K
InChi Code
InChI=1S/C16H12N4O9S2.Al/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);/q;+3/p-3/b18-17+;
SMILES Code
O=C(C(C1/N=N/C2=CC=C(S(=O)([O-])=O)C=C2)=NN(C3=CC=C(S(=O)([O-])=O)C=C3)C1=O)[O-].[Al+3]
Appearance
Solid powder
Purity
>95% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>2 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
3205.00.5010
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 492.37 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
1: Songyang Y, Yang X, Xie S, Hao H, Song J. Highly-sensitive and rapid determination of sunset yellow using functionalized montmorillonite-modified electrode. Food Chem. 2015 Apr 15;173:640-4. doi: 10.1016/j.foodchem.2014.10.075. Epub 2014 Oct 22. PubMed PMID: 25466070. 2: Zhang Y, Chang C, Guo Q, Cao H, Bai Y, Liu H. [Analysis of tartrazine aluminum lake and sunset yellow aluminum lake in foods by capillary zone electrophoresis]. Se Pu. 2014 Apr;32(4):438-42. Chinese. PubMed PMID: 25069336. 3: Desai A, Peck GE, Lovell JE, White JL, Hem SL. The effect of aluminum hydroxide dissolution on the bleeding of aluminum lake dyes. Pharm Res. 1993 Oct;10(10):1458-60. PubMed PMID: 8272407.