2-Nitro-5-thiocyanatobenzoic acid
2-硝基-5-氰硫基苯甲酸
Also known as: NTCB, 2-Nitro-5-thiocyanobenzoic acid, 2-Nitro-5-thiocyanatobenzoesaeure, 2-Nitro-5-thiocyano-benzoesaeure, Benzoic acid, 2-nitro-5-thiocyanato-
2-Nitro-5-thiocyanatobenzoic acid (CAS 30211-77-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H4N2O4S and a molecular weight of 224.19300 g/mol. It is also known as NTCB, 2-Nitro-5-thiocyanobenzoic acid and 2-Nitro-5-thiocyanatobenzoesaeure. Key properties include a melting point of 156-157ºC(lit.), a boiling point of 449ºC at 760mmHg, a density of 1.63g/cm3 and a flash point of 225.4ºC. 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.
- 30211-77-9
- Jingsj CID
- J-36149-3
- Molecular Formula
- C8H4N2O4S
- Chinese Name
- 2-硝基-5-氰硫基苯甲酸
- Molecular Weight
- 224.19300 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 156-157ºC(lit.) |
|---|---|
| Boiling Point | 449ºC at 760mmHg |
| Density | 1.63g/cm3 |
| Flash Point | 225.4ºC |
| Exact Mass | 223.98900 |
| PSA | 132.21000 |
| LogP | 2.38938 |
| Appearance | powder | yellow |
| Refractive Index | 1.5690 (estimate) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Qiao Y, et al. Site-Specific Conversion of Cysteine in a Protein to Dehydroalanine Using 2-Nitro-5-thiocyanatobenzoic Acid. Molecules. 2021;26(9):2619. Published 2021 Apr 29. [2]. Price NC. Alternative products in the reaction of 2-nitro-5-thiocyanatobenzoic acid with thiol groups. Biochem J. 1976;159(1):177-180. |
|---|
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. 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 2-Nitro-5-thiocyanatobenzoic acid?
The CAS number of 2-Nitro-5-thiocyanatobenzoic acid is 30211-77-9.
What are the molecular formula and molecular weight of 2-Nitro-5-thiocyanatobenzoic acid?
2-Nitro-5-thiocyanatobenzoic acid has molecular formula C8H4N2O4S and molecular weight 224.19300 g/mol.
Is 2-Nitro-5-thiocyanatobenzoic acid hazardous?
2-Nitro-5-thiocyanatobenzoic acid 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 2-Nitro-5-thiocyanatobenzoic acid?
For 2-Nitro-5-thiocyanatobenzoic acid, Upstream Products: 5,5'-Dithiobis(2-nitrobenzoic acid).
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Nitro-5-thiocyanatobenzoic acid (CAS 30211-77-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36149-3 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.