Indoxyl acetate
Indoxyl acetate (CAS: 608-08-2), with the molecular formula C10H9NO2 and a molecular weight of 175.18 g/mol, is a valuable biochemical reagent. It functions primarily as a colorimetric substrate for the enzymatic detection and differentiation of esterases. Its reliable performance makes it a key tool in biochemical research and diagnostics for identifying various microbial species based on their esterase activity.
- IUPAC
- 3-Acetoxyindole
- Synonyms
- 3-Acetoxyindole

Esterase Differentiation
Indoxyl acetate serves as a colourimetric substrate for the accurate differentiation of esterases. This application is particularly useful in microbiology for distinguishing between various species based on their enzymatic profiles.
Biochemical Research
Utilised as a key reagent in biochemical assays, Indoxyl acetate aids in the study of enzyme kinetics and specificity. Its predictable hydrolysis allows researchers to quantify esterase activity in diverse biological samples.
Diagnostic Tool
Its ability to produce a colour change upon enzymatic cleavage makes Indoxyl acetate a valuable tool in diagnostic microbiology. It facilitates rapid identification of microorganisms exhibiting specific esterase activity.
| Molecular weight | 175.18 |
|---|---|
| Empirical formula | C10H9NO2 |
| Assay | ≥95% (TLC) |
| Storage temperature | 2-8°C |
| Application | Indoxyl acetate has been used as a colorimetric substrate for differentiating esterases from various microbiological species. |
| Melting point | 128-130 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Indoxyl acetate used for?
+
Indoxyl acetate is primarily used as a colorimetric substrate for the differentiation of esterases, particularly in microbiological applications for identifying different species based on their enzymatic activity. It is also employed in biochemical research for studying enzyme kinetics.
What are the CAS number and molecular formula for Indoxyl acetate?
+
The CAS number for Indoxyl acetate is 608-08-2, and its molecular formula is C10H9NO2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Indoxyl acetate with a purity of ≥95% (TLC). This product is suitable for research and laboratory use. TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Indoxyl acetate be handled and stored?
+
Indoxyl acetate should be handled with appropriate personal protective equipment, including a dust mask (N95 US type), eyeshields, and gloves. It is classified as harmful if swallowed and causes skin and eye irritation, and may cause respiratory irritation. Store at 2-8°C.
Is Indoxyl acetate a controlled substance?
+
The provided data does not indicate that Indoxyl acetate is a controlled substance.
How are Indoxyl acetate products packed and shipped?
+
Tech Serve Solutions packs and ships Indoxyl acetate according to industry best practices for chemical reagents. We are a specialist global supplier and exporter of fine chemicals.
How can I request a quote or sample of Indoxyl acetate?
+
To request a quote or sample of Indoxyl acetate, please contact our sales team through our website or by phone, providing your specific requirements.
▶ Related products
![(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide (C8H13N3O4) — chemical structure, CAS 138472-01-2; Biochemicals & Reagents, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F138472-01-2.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide
C8H13N3O4
Biochemicals & Reagents![(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide (C14H18N4O4) — chemical structure, CAS 162626-99-5; Biochemicals & Reagents, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F162626-99-5.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide
C14H18N4O4
Biochemicals & Reagents
(±)-2,5-Dimethoxy-4-bromoamphetamine hydrobromide
Biochemicals & Reagents

(±)-2-(p-Methoxyphenoxy)propionic acid
C10H12O4
Biochemicals & Reagents
(±)-2-Amino-6,7-dihydroxy-1,2,3,4-tetrahydronaphthalene hydrobromide
C10H13NO2·HBr
Biochemicals & Reagents
(±)-2-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxyoctanoic acid
C8H16O3
Biochemicals & Reagents▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis