Molecule structure of N-Methyl-N'-phenyl thiourea (CAS NO.2724-69-8):

IUPAC Name: 1-Methyl-3-phenylthiourea 
Molecular Weight: 166.2434 g/mol
Molecular Formula: C₈H₁₀N₂S 
Density: 1.194 g/cm³ 
Melting Point: 113 °C
Boiling Point: 247.4 °C at 760 mmHg 
Flash Point: 103.4 °C
Index of Refraction: 1.659
Molar Refractivity: 51.37 cm³
Molar Volume: 139.2 cm³
Polarizability: 20.36×10^-24 cm³
Surface Tension: 55.8 dyne/cm 
Enthalpy of Vaporization: 48.46 kJ/mol
Vapour Pressure: 0.0257 mmHg at 25 °C
XLogP3: 1.7
H-Bond Donor: 2 
Rotatable Bond Count: 1
Tautomer Count: 3
Exact Mass: 166.056469
MonoIsotopic Mass: 166.056469
Topological Polar Surface Area: 24.1
Heavy Atom Count: 11
Complexity: 130
Canonical SMILES: CNC(=S)NC1=CC=CC=C1
InChI: InChI=1S/C8H10N2S/c1-9-8(11)10-7-5-3-2-4-6-7/h2-6H,1H3,(H2,9,10,11)
InChIKey: IGEQFPWPMCIYDF-UHFFFAOYSA-N

 N-Methyl-N'-phenyl thiourea (CAS NO.2724-69-8) is used to prepare 2-methylamino-benzothiazole which is the intermediate of herbicide methyl benzene thiophene.

In the reactor by adding sodium carbonate solution, the carbon disulfide solution of aniline added to the reactor, the reaction temperature was controlled at 40 ~ 50 °C, generating two thio aniline sodium (PhNHCS₂Na), and then join the methylamine solution and keep stirring obtained crystallization, filtration, washing derived product.

Reported in EPA TSCA Inventory.

Poison by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of SO_x and NO_x.
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.

 N-Methyl-N'-phenyl thiourea (CAS NO.2724-69-8) is also called 1-Methyl-3-phenylthiocarbamide ; 1-Methyl-3-phenylthiourea ; 1-Phenyl-3-methylthiourea ; 3-12-00-00853 (Beilstein Handbook Reference) ; BRN 0638006 ; N-Methyl-N'-phenylthiourea ; NSC 3736 ; Thiourea, N-methyl-N'-phenyl- ; Urea, 1-methyl-3-phenyl-2-thio- . N-Methyl-N'-phenyl thiourea (CAS NO.2724-69-8) is lamellae. It can soluble in ethanol and ether and also can dissolve in water.