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5-Chloroisatoic anhydride

Also known as: 6-Chloro-1,2-dihydro-4H-3,1-benzoxazine-2,4-dione, 6-Chloro-4H-3,1-benzoxazine-2,4(1H)-dione, 6-Chloro-2H-3,1-benzoxazine-2,4(1H)-dione, 6-Chloro-1H-benzo[d][1,3]oxazine-2,4-dione, 6-Chloroisatin anhydride, 6-Chloro-carsalam, 5-Chloroisatoic anhydride, 5-Chloroisatononic anhydride, 6-Chloro-2H-1,3-benzoxazine-2,4(3H)-dione, 6-chloro-4h-3,1-benzoxazine-2,4(1h)-dione, 6-chloro-benz[e][1,3]oxazine-2,4-dione, 6-chloro-benzo[e][1,3]oxazine-2,4-dione, AKOS BBS-00002892, BUTTPARK 50 7-92, EINECS 225-255-7, MFCD00006701, TIMTEC-BB SBB003570

5-Chloroisatoic anhydride (CAS 4743-17-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H4ClNO3 and a molecular weight of 197.575 g/mol. Key properties include a melting point of 300ºC (dec.) and a density of 1.5±0.1 g/cm3. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4743-17-3
Jingsj CID
J-1991936-9
Molecular Formula
C8H4ClNO3
Molecular Weight
197.575 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point300ºC (dec.)
Density1.5±0.1 g/cm3
Exact Mass196.987976
PSA63.07000
LogP1.50
Refractive Index1.601

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Chloroisatoic anhydride?

The CAS number of 5-Chloroisatoic anhydride is 4743-17-3.

What are the molecular formula and molecular weight of 5-Chloroisatoic anhydride?

5-Chloroisatoic anhydride has molecular formula C8H4ClNO3 and molecular weight 197.575 g/mol.

Is 5-Chloroisatoic anhydride hazardous?

5-Chloroisatoic anhydride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 5-Chloroisatoic anhydride?

For 5-Chloroisatoic anhydride, Upstream Products: Bis(trichloromethyl) carbonate, 2-Amino-5-chlorobenzoic acid, 2-Amino-6-chlorobenzoic acid; Downstream Products: 2-Amino-5-chlorobenzamide, 7-Chloro-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione, Methyl 2-amino-6-chlorobenzoate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "5-Chloroisatoic anhydride (CAS 4743-17-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991936-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.