Fenaminosulf

敌克松

Also known as: Sodium p-(dimethylamino)benzenediazo sulfonate, 4-Dimethylaminobenzenediazosulfonic acid sodium salt, Sodium (E)-[4-(dimethylamino)phenyl]diazenesulfonate, DAS, sodium (EZ)-4-dimethylaminobenzenediazosulfonate, sodium 2-[4-(dimethylamino)phenyl]-1-diazenesulfonate, sodium N-[4-(dimethylamino)phenyl]iminosulfamate, Diazenesulfonic acid, 2-[4-(dimethylamino)phenyl]-, sodium salt, (E)- (1:1)

Fenaminosulf (CAS 140-56-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H10N3NaO3S and a molecular weight of 251.238 g/mol. It is also known as Sodium p-(dimethylamino)benzenediazo sulfonate, 4-Dimethylaminobenzenediazosulfonic acid sodium salt and Sodium (E)-[4-(dimethylamino)phenyl]diazenesulfonate. Key property: a melting point of 200ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful in contact with skin and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
140-56-7
Jingsj CID
J-38874-0
Molecular Formula
C8H10N3NaO3S
Chinese Name
敌克松
Molecular Weight
251.238 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point200ºC
Exact Mass251.034058
PSA93.54000
LogP2.37730

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H312 — Harmful in contact with skin
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2927000010
Summary2927000010 sodium (e)-2-(4-(dimethylamino)phenyl)diazenesulfonate。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of Fenaminosulf?

The CAS number of Fenaminosulf is 140-56-7.

What are the molecular formula and molecular weight of Fenaminosulf?

Fenaminosulf has molecular formula C8H10N3NaO3S and molecular weight 251.238 g/mol.

Is Fenaminosulf hazardous?

Fenaminosulf has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful in contact with skin; H412 — Harmful to aquatic life with long lasting effects.

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

Last updated:

How to cite: Jingsj. "Fenaminosulf (CAS 140-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38874-0 (accessed 2026-10-28).

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