Isatin, GR 99%+

Name: Isatin, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-012603

About Isatin, GR 99%+

Vaqora Chemicals supplies Isatin in AR grade, a five-membered N-heterocycle registered under CAS number 91-56-5 at a purity of ≥99%. With the molecular formula C8H5NO2, it has a molar mass 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.

The material typically appears as an orange - red powder. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Isatin in 25 g, 100 g, 500 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Isatin, GR 99%+
Catalogue No.	VQ-012603
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	AR
Purity / assay	≥99%
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
LogP (XLogP3)	0.8
H-bond donors / acceptors	1 / 2
TPSA	46.2 Å²
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

Synthesis

Isatin, 98%

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

VQ-012602

Frequently asked questions

What is the CAS number of Isatin, GR 99%+?

The CAS Registry Number of Isatin, GR 99%+ 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, GR 99%+?

Isatin, GR 99%+ 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, GR 99%+ can I order?

We supply Isatin, GR 99%+ in AR (≥99%) grade, in 25 g, 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, GR 99%+?

Yes. Every lot of Isatin, GR 99%+ 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, GR 99%+ be shipped internationally?

Yes. Isatin, GR 99%+ 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.