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Description

Phenmedipham · CAS 13684-63-4 · C16H16N2O4. UNII UJE31KXP78. Melting Point: 289 to 291 °F (NTP, 1992); Melting Point: 139-142 (143-144 °C); Flash Point: 74 °C CC.

Identification

CAS Registry Number	13684-63-4
PubChem CID	24744
Molecular formula	C16H16N2O4
IUPAC name	[3-(methoxycarbonylamino)phenyl] N-(3-methylphenyl)carbamate
UNII (FDA)	UJE31KXP78

Computed Descriptors

Molecular Weight	300.31
XLogP3	3.6
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	5
Exact Mass	300.11100700
Monoisotopic Mass	300.11100700
Topological Polar Surface Area	76.7
Heavy Atom Count	22
Formal Charge	0

Physical & Chemical Properties

Melting Point	289 to 291 °F (NTP, 1992)
Melting Point	139-142 (143-144 °C)
Flash Point	74 °C CC
Density	0.25-0.30 g/cu c at 20 °C
Vapor Pressure	1e-11 mmHg at 77 °F (NTP, 1992)
Vapor Pressure	1.3 nPa at 25 °C
LogP	3.59

Physical description & handling notes

• Phenmedipham appears as colorless crystals or white powder. (NTP, 1992)
• Colorless solid; [Merck Index] Colorless odorless solid; Formulated as technical solid and emulsifiable concentrate; [EPA REDs]
• Colorless crystals
• ODORLESS
• less than 1 mg/mL at 70 °F (NTP, 1992)
• COLORLESS, ODORLESS, CRYSTALLINE SOLID; MP 143-144 °C; SOLUBILITY: 1 MG/L WATER AT 20 °C, ACETONE 20%, CYCLOHEXANONE 20%, METHANOL 5% /TECHNICAL MATERIAL 97% PURE/

GHS Hazard Classification

Reported hazard statements	H400, H410, H373

Documented Uses

• Used as a post-emergent herbicide; [Kanerva, p. 783] Used as a broadleaf herbicide for sugar and table beets, spinach, and Swiss chard grown for seed (over 98% used on sugar beets); [EPA REDs]
• POST EMERGENT HERBICIDE FOR CONTROL OF CERTAIN BROADLEAF & GRASS WEEDS; RECOMMENDED FOR USE IN SUGAR BEETS, STRAWBERRIES & SUNFLOWERS
• Phenmedipham is a selective herbicide commonly used in beet, spinach, and strawberry crops to protect against weeds, often in comination with Desmedipham.
• PRODUCED BY REACTION OF 3-METHOXYCARBONYLAMINOPHENOL & M-TOLYL ISOCYANATE ... .
• US PATENT/S/ 3,404,075 & 3,692,820.
• IT IS APPLIED EITHER BROADCAST OR AS BAND TREATMENT. RATES: BROADCAST--1 TO 1.25 LB/ACRE AT COTYLEDON TO TWO TRUE LEAF STAGE WEEDS. 1.25 TO 1.5 LB/ACRE AT 2 TO 4 TRUE LEAF STAGE OF WEEDS. USUAL CARRIER: PHENMEDIPHAM IS APPLIED DILUTED WITH WATER AT BROADCAST RATE OF 20 GALLONS/ACRE.

Synonyms

Phenmedipham; 13684-63-4; BETANAL; Fenmedifam; Spin-aid; Phenmediphame; Kemifam; Synbetan P; Schering-38584; Schering 4072; Morton EP 452; Caswell No. 648B; EP-452; SN-38584; Methyl 3-(3-methylcarbaniloyloxy)carbanilate; DTXSID1024255

Frequently Asked Questions

What are the CAS number and molecular formula of Phenmedipham?

CAS 13684-63-4; molecular formula C16H16N2O4; molecular weight — g/mol.

What other names is Phenmedipham known by?

Phenmedipham, 13684-63-4, BETANAL, Fenmedifam, Spin-aid, Phenmediphame.

Is Phenmedipham classified as hazardous?

Hazard statements reported: H400, H410, H373.

What are the key physical properties of Phenmedipham?

Melting Point: 289 to 291 °F (NTP, 1992); Melting Point: 139-142 (143-144 °C); Flash Point: 74 °C CC; Density: 0.25-0.30 g/cu c at 20 °C.

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.