EPTC

Description

EPTC · CAS 759-94-4 · C9H19NOS. UNII R7PI3287F4. Boiling Point: 261 °F at 20 mmHg (NTP, 1992); Boiling Point: 127 °C @ 20 mm Hg; Boiling Point: 232 °C.

Identification

CAS Registry Number	759-94-4
PubChem CID	12968
Molecular formula	C9H19NOS
IUPAC name	S-ethyl N,N-dipropylcarbamothioate
UNII (FDA)	R7PI3287F4

Computed Descriptors

Molecular Weight	189.32
XLogP3	3.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	6
Exact Mass	189.11873540
Monoisotopic Mass	189.11873540
Topological Polar Surface Area	45.6
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Boiling Point	261 °F at 20 mmHg (NTP, 1992)
Boiling Point	127 °C @ 20 mm Hg
Boiling Point	232 °C
Flash Point	116 °C (OPEN CUP)
Flash Point	116 °C o.c.
Solubility	In water, 375 mg/l @ 25 °C
Density	0.955 @ 30 °C
Vapor Pressure	0.034 mmHg at 95 °F (NTP, 1992)
Vapor Pressure	0.02 [mmHg]
Vapor Pressure	2.4X10-2 mm Hg @ 25 °C

Physical description & handling notes

• Ethyl dipropylthiocarbamate appears as clear yellow or light yellow liquid. (NTP, 1992)
• Available in liquid or granular forms; [Hawley] Colorless liquid; [ICSC] Technical product is yellow liquid; [HSDB] Colorless to yellow liquid with an aromatic odor; [AccuStandard MSDS]
• COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
• Colorless liquid
• Yellow liquid (technical)
• Aromatic odor

GHS Hazard Classification

Reported hazard statements	H302

Documented Uses

• Used as selective herbicide for control of many types of weeds in food crops, non-food use sites, and residential and public sites; [HSDB]
• SELECTIVE HERBICIDE FOR CONTROL OF A VARIETY OF WEEDS
• Eptam is used in every region of the United States in the agricultural production of a wide variety of food crops. Eptam is used on non-food use sites such as citrus nursery stock, non-bearing fruit orchards, evergreens, deciduous trees, scrubs, pine seeding nurseries, and ornamentals. Eptam is also used at residential/public sites such as parks, flower gardens, turf grasses, and golf course sand traps.
• Control of annual and perennial grasses and some broad-leaved weeds in crops.
• Thiocarbamates are widely used throughout the world and are produced in great quantities, mainly as herbicides and fungicides.
• REACTION OF ETHYL MERCAPTAN WITH PHOSGENE TO PRODUCE ETHYL CHLOROTHIOFORMATE, FOLLOWED BY REACTION OF THIS WITH DI-N-PROPYLAMINE

Synonyms

S-Ethyl dipropylthiocarbamate; EPTAM; DTXSID1024091; Ethyl dipropylthiocarbamate; Carbamothioic acid, dipropyl-, S-ethyl ester; R7PI3287F4; FDA-1541; NSC-40486; DTXCID504091; Ethyl N,N-di-n-propylthiocarbamate; Carbamothioic acid, N,N-dipropyl-, S-ethyl ester; ETHYL DIPROPYLTHIOCARBAMATE, S-; S-ETHYL DIPROPYL(THIOCARBAMATE); RefChem:591012; DIPROPYLTHIOCARBAMIC ACID, S-ETHYL ESTER; N,N-DIPROPYLTHIOCARBAMIC ACID S ETHYL ESTER

Frequently Asked Questions

What are the CAS number and molecular formula of EPTC?

CAS 759-94-4; molecular formula C9H19NOS; molecular weight — g/mol.

What other names is EPTC known by?

S-Ethyl dipropylthiocarbamate, EPTAM, DTXSID1024091, Ethyl dipropylthiocarbamate, Carbamothioic acid, dipropyl-, S-ethyl ester, R7PI3287F4.

Is EPTC classified as hazardous?

Hazard statements reported: H302.

What are the key physical properties of EPTC?

Boiling Point: 261 °F at 20 mmHg (NTP, 1992); Boiling Point: 127 °C @ 20 mm Hg; Boiling Point: 232 °C; Flash Point: 116 °C (OPEN CUP).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.