5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine

5-(4-氯苯基)-1,3,4-噻二唑-2-胺

Also known as: 2-amino-5-(4-chlorophenyl)-1,3,4-thiadiazole, 2-amino-5-(p-chlorophenyl)-1,3,4-thiadiazole, 5-(4-chlorophenyl)-[1,3,4]thiadiazol-2-ylamine, 5-(4-chlorophenyl)-1,3,4-thiadiazole-2-amine, 1-(5-amino-1,3,4-thiadiazol-2-yl)-4-chlorobenzene

5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine (CAS 28004-62-8) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H6ClN3O and a molecular weight of 195.60600 g/mol. It is also known as 2-amino-5-(4-chlorophenyl)-1,3,4-thiadiazole, 2-amino-5-(p-chlorophenyl)-1,3,4-thiadiazole and 5-(4-chlorophenyl)-[1,3,4]thiadiazol-2-ylamine. Key properties include a melting point of 229-233ºC(lit.), a boiling point of 383.9ºC at 760mmHg, a density of 1.461g/cm3 and a flash point of 186ºC. 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.
28004-62-8
Jingsj CID
J-13051-0
Molecular Formula
C8H6ClN3O
Chinese Name
5-(4-氯苯基)-1,3,4-噻二唑-2-胺
Molecular Weight
195.60600 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point229-233ºC(lit.)
Boiling Point383.9ºC at 760mmHg
Density1.461g/cm3
Flash Point186ºC
Exact Mass195.02000
PSA64.94000
LogP2.55340
Vapor Pressure4.26E-06mmHg at 25°C
Refractive Index1.676

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-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine?

The CAS number of 5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine is 28004-62-8.

What are the molecular formula and molecular weight of 5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine?

5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine has molecular formula C8H6ClN3O and molecular weight 195.60600 g/mol.

Is 5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine hazardous?

5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine 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-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine?

For 5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine, Upstream Products: Thiosemicarbazide, 4-Chlorobenzoic acid, Hydrazinecarbothioamide,2-[(4-chlorophenyl)methylene]-.

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

Last updated:

How to cite: Jingsj. "5-(4-chlorophenyl)-1,3,4-thiadiazol-2-amine (CAS 28004-62-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13051-0 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.