Isatin, 98%

Name: Isatin, 98%
Brand: Vaqora Chemicals
SKU: VQ-012602

About Isatin, 98%

Isatin is a five-membered N-heterocycle in Synthesis grade carrying the CAS registry number 91-56-5 at a purity of 98%. The compound has the formula C8H5NO2, corresponding to a molecular weight of 147.13 g/mol. Systematically, it is named 1H-indole-2,3-dione. Common synonyms include 2,3-Dioxo-2,3-dihydroindole and 2,3-Diketoindoline.

It is supplied as an orange - red powder. Literature values give a melting point of 193-195 °C. Keep the material at room temperature in a dry place and protect it from moisture. It carries the GHS signal word “Warning” with 2 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for chromatography and organic synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 100 g, 500 g, 1 kg and 5 kg packs, Isatin is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Chromatography
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Isatin, 98%
Catalogue No.	VQ-012602
CAS Number	91-56-5
IUPAC name	1H-indole-2,3-dione
Molecular formula	C₈H₅NO₂
Molecular weight	147.13 g/mol
Exact mass	147.032
Grade	Synthesis
Purity / assay	98%
HSN code	29337900
InChIKey	JXDYKVIHCLTXOP-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=O)C(=O)N2
PubChem CID	7054

Physical properties
Physical form	Powder
Appearance	Orange - red powder
Melting point	193-195 °C
LogP (XLogP3)	0.8
H-bond donors / acceptors	1 / 2
TPSA	46.2 Å²
Storage	Room temperature
Synonyms	2,3-Dioxo-2,3-dihydroindole, 2,3-Diketoindoline, 2,3-Dioxoindoline, 2,3-Indolinedione, o-Aminobenzoylformic anhydride, Isatic acid lactam, Isatine, Isatinic acid anhydride, Pseudoisatin, Isotin, 2,3-dihydro-1H-indole-2,3-dione, 2,3 Dioxoindoline

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H317May cause an allergic skin reaction
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P261, P272, P273, P280, P302 + P352, P321, P333 + P317, P362 + P364, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 91-56-5

AR

Isatin, GR 99%+

CAS: 91-56-5
Formula: C₈H₅NO₂
MW: 147.13 g/mol

VQ-012603

Frequently asked questions

What is the CAS number of Isatin, 98%?

The CAS Registry Number of Isatin, 98% is 91-56-5. It is also known as 2,3-Dioxo-2,3-dihydroindole, 2,3-Diketoindoline, 2,3-Dioxoindoline.

What is the molecular formula and molecular weight of Isatin, 98%?

Isatin, 98% has the molecular formula C8H5NO2 and a molecular weight of 147.13 g/mol. Its IUPAC name is 1H-indole-2,3-dione.

Which grade and pack sizes of Isatin, 98% can I order?

We supply Isatin, 98% in Synthesis (98%) grade, in 100 g, 500 g, 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Isatin, 98%?

Yes. Every lot of Isatin, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Isatin, 98% be shipped internationally?

Yes. Isatin, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

How should Isatin, 98% be stored?

Room temperature. Keep the container tightly closed and refer to the SDS for full handling guidance.