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(S)-(-)-2-Formamidosuccinic anhydride

Also known as: N-Formyl-L-aspartic anhydride, N-Formylaspartic anhydride, (S)-N-(tetrahydro-2,5-dioxo-3-furyl)formamide, Formamide,N-[(3S)-tetrahydro-2,5-dioxo-3-furanyl]-, N-[(3S)-2,5-dioxooxolan-3-yl]formamide, formyl aspartic acid anhydride, N-formyl aspartic acid anhydride, N-formyl-L-aspartic acid anhydride

(S)-(-)-2-Formamidosuccinic anhydride (CAS 33605-73-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H5NO4 and a molecular weight of 143.09700 g/mol. Key properties include a melting point of 145-155ºC (dec.)(lit.), a boiling point of 486ºC at 760 mmHg, a density of 1.44 g/cm3 and a flash point of 247.7ºC. 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.
33605-73-1
Jingsj CID
J-1331027-5
Molecular Formula
C5H5NO4
Molecular Weight
143.09700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point145-155ºC (dec.)(lit.)
Boiling Point486ºC at 760 mmHg
Density1.44 g/cm3
Flash Point247.7ºC
Exact Mass143.02200
PSA72.47000
Refractive Index1.498

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2924199090
Summary2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (S)-(-)-2-Formamidosuccinic anhydride?

The CAS number of (S)-(-)-2-Formamidosuccinic anhydride is 33605-73-1.

What are the molecular formula and molecular weight of (S)-(-)-2-Formamidosuccinic anhydride?

(S)-(-)-2-Formamidosuccinic anhydride has molecular formula C5H5NO4 and molecular weight 143.09700 g/mol.

Is (S)-(-)-2-Formamidosuccinic anhydride hazardous?

(S)-(-)-2-Formamidosuccinic 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 (S)-(-)-2-Formamidosuccinic anhydride?

For (S)-(-)-2-Formamidosuccinic anhydride, Upstream Products: L-Aspartic acid; Downstream Products: For-Asp-Phe-OMe.

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

Last updated:

How to cite: Jingsj. "(S)-(-)-2-Formamidosuccinic anhydride (CAS 33605-73-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1331027-5 (accessed 2026-11-09).

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