Acid Red 111 free acid

4-hydroxy-3-[[3-methyl-4-[2-methyl-4-[[4-(4-methylphenyl)sulfonyloxyphenyl]diazenyl]phenyl]phenyl]diazenyl]naphthalene-2,7-disulfonic acid

CAS: 29128-77-6

Molecular Formula	`C37H30N4O10S3`
Molecular Weight	786.9 g/mol
LogP	7.7
Topological Polar Surface Area	247.0 A2
Hydrogen Bond Donors	3
Hydrogen Bond Acceptors	14
Rotatable Bonds	10
Exact Mass	786.1124
Heavy Atoms	54
Complexity	1640.0

Chemical Identifiers

CAS Number	29128-77-6
SMILES	`CC1=CC=C(C=C1)S(=O)(=O)OC2=CC=C(C=C2)N=NC3=CC(=C(C=C3)C4=C(C=C(C=C4)N=NC5=C(C=C6C=C(C=CC6=C5O)S(=O)(=O)O)S(=O)(=O)O)C)C`
InChIKey	`YSHSHWHUIBZXKJ-UHFFFAOYSA-N`

📖 Product Overview

Acid Red 111 free acid (CAS: 29128-77-6) is a chemical compound with molecular formula C37H30N4O10S3 and molecular weight 786.9 g/mol. Its IUPAC systematic name is 4-hydroxy-3-[[3-methyl-4-[2-methyl-4-[[4-(4-methylphenyl)sulfonyloxyphenyl]diazenyl]phenyl]phenyl]diazenyl]naphthalene-2,7-disulfonic acid. LogP 7.7 Topological Polar Surface Area 247.0 A2 Hydrogen Bond Donors 3 Hydrogen Bond Acceptors 14 Rotatable Bonds 10 Exact Mass 786.1124 Heavy Atoms 54 Complexity 1640.0 InChI Key: YSHSHWHUIBZXKJ-UHFFFAOYSA-N. SMILES: CC1=CC=C(C=C1)S(=O)(=O)OC2=CC=C(C=C2)N=NC3=CC(=C(C=C3)C4=C(C=C(C=C4)N=NC5=C(C=C6C=C(C=CC6=C5O)S(=O)(=O)O)S(=O)(=O)O)C)C.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.

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Frequently Asked Questions

What is the typical lead time for this product?

Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.

Can you provide samples for testing?

Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.

What documentation do you provide with the product?

We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.

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