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1,3-Diiminoisoindoline

Also known as: 1,3-Isoindolinediimine, Phthalimide diimide, 1-Imino-1H-isoindol-3-amine, 3-Amino-1-imino-1H-isoindole, 1H-Isoindol-3-amine, 1-imino-, 3-Iminoisoindolenin-1-amine, Isoindoline-1,3-diimine, C.I. Ingrain Blue 2:2, Phthalogen Brilliant Blue IF3G, MFCD00010062, EINECS 222-426-8

1,3-Diiminoisoindoline (CAS 3468-11-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7N3 and a molecular weight of 145.161 g/mol. Key properties include a melting point of 197ºC, a boiling point of 240.0±23.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 98.9±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H318 — Causes serious eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3468-11-9
Jingsj CID
J-1012180-9
Molecular Formula
C8H7N3
Molecular Weight
145.161 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point197ºC
Boiling Point240.0±23.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point98.9±22.6 °C
Exact Mass145.063995
PSA62.23000
LogP0.32
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.737

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 1,3-Diiminoisoindoline?

The CAS number of 1,3-Diiminoisoindoline is 3468-11-9.

What are the molecular formula and molecular weight of 1,3-Diiminoisoindoline?

1,3-Diiminoisoindoline has molecular formula C8H7N3 and molecular weight 145.161 g/mol.

Is 1,3-Diiminoisoindoline hazardous?

1,3-Diiminoisoindoline has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1,3-Diiminoisoindoline?

For 1,3-Diiminoisoindoline, Downstream Products: Dihydralazine.

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

Last updated:

How to cite: Jingsj. "1,3-Diiminoisoindoline (CAS 3468-11-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1012180-9 (accessed 2026-11-09).

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