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Cyromazine
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Name

Cyromazine

 EINECS 266-257-8
CAS No. 66215-27-8 Density 1.622 g/cm3
PSA 102.74000 LogP 0.84570
Solubility 13 g l-1 (pH 7.1,25 °C) Melting Point 223-227 °C(lit.)
Formula C6H10N6 Boiling Point 480.7 °C at 760 mmHg
Molecular Weight 166.186 Flash Point 244.5 °C
Transport Information N/A Appearance Colorless crystal
Safety 26-36 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 66215-27-8 (Cyromazine) Hazard Symbols IrritantXi
Synonyms

1,3,5-Triazine-2,4,6-triamine,N-cyclopropyl- (9CI);2,4-Diamino-6-(cyclopropylamino)-s-triazine;2-Cyclopropylamino-4,6-diamino-s-triazine;CGA 72662;Citation;Cyclopropylmelamine;

Article Data 13

Cyromazine Synthetic route

3397-62-4

2-Chloro-4,6-diamino-1,3,5-triazine

765-30-0

Cyclopropylamine

66215-27-8

cyromazine

Conditions
ConditionsYield
With sodium hydroxide at 70 - 85℃; for 6h; pH=9.5; pH-value; Temperature;96.37%
With potassium carbonate In water at 95 - 100℃; for 4h; pH=7.5 - 8.5; Temperature; Reagent/catalyst;90.1%
With sodium hydroxide at -10 - 10℃; for 10h; Temperature;24.47 g
32889-45-5

2,4-dichloro-6-cyclopropylamino-1,3,5-triazine

66215-27-8

cyromazine

Conditions
ConditionsYield
With ammonia In water; toluene at 120℃; under 4500.45 Torr; for 10h;93.5%
123-91-1

1,4-dioxane

35516-73-5

6-chloro-N-cyclopropyl-[1,3,5]triazine-2,4-diamine

66215-27-8

cyromazine

Conditions
ConditionsYield
With ammonia
With ammonia
35516-73-5

6-chloro-N-cyclopropyl-[1,3,5]triazine-2,4-diamine

66215-27-8

cyromazine

Conditions
ConditionsYield
With ammonia In 1,4-dioxane; water
66215-27-8

cyromazine

543-27-1

isobutyl chloroformate

2-cyclopropylamino-4,6-bis-isobutoxycarbonylamino-s-triazine

Conditions
ConditionsYield
With pyridine; dmap In chloroform
75-36-5

acetyl chloride

66215-27-8

cyromazine

2,4-bis-acetylamino-6-cyclopropylamino-1,3,5-triazine

Conditions
ConditionsYield
In pyridine
38870-89-2

Methoxyacetyl chloride

66215-27-8

cyromazine

2,4-bis-methoxyacetylamino-6-cyclopropylamino-1,3,5-triazine

Conditions
ConditionsYield
In pyridine
66215-27-8

cyromazine

2-cyclopropylamino-4-acetylamino-6-amino-1,3,5-triazine

Conditions
ConditionsYield
With acetic anhydride; triethylamine In tetrahydrofuran; diethyl ether
19500-95-9

Methoxyacetic anhydride

66215-27-8

cyromazine

99135-52-1

2-cyclopropylamino-4-methoxyacetylamino-6-amino-1,3,5-triazine

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran; diethyl ether
40244-90-4

Chlorodiisopropylphosphane

66215-27-8

cyromazine

N-cyclopropyl-N,N-bis(diisopropylphosphaneyl)-1,3,5-triazine-2,4,6-triamine

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 60℃; Inert atmosphere; Sealed tube;

Cyromazine Chemical Properties

Molecular structure of Cyromazine (CAS NO.66215-27-8) is:

Product Name: Cyromazine
CAS Registry Number: 66215-27-8
IUPAC Name: 2-N-cyclopropyl-1,3,5-triazine-2,4,6-triamine
Molecular Weight: 166.1838 [g/mol]
Molecular Formula: C6H10N6
XLogP3: -0.2
H-Bond Donor: 3
H-Bond Acceptor: 6 
EINECS: 266-257-8
Melting Point: 223-227 °C(lit.)
Surface Tension: 132.7 dyne/cm
Density: 1.622 g/cm3
Flash Point: 244.5 °C
Enthalpy of Vaporization: 74.52 kJ/mol
Boiling Point: 480.7 °C at 760 mmHg
Vapour Pressure: 2.13E-09 mmHg at 25°C
Product Categories: Fine Chemical & Intermediates;Active Pharmaceutical Ingredients;Insecticide

Cyromazine Uses

In veterinary medicine, Cyromazine (CAS NO.66215-27-8) is used as a ectoparasiticide. Also it can be used as an insecticide and an acaricide.

Cyromazine Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
domestic animals - goat/sheep LDLo oral 500mg/kg (500mg/kg) PERIPHERAL NERVE AND SENSATION: FASCICULATIONS

BEHAVIORAL: ATAXIA		 National Technical Information Service. Vol. OTS0538005,
duck LD50 oral > 6gm/kg (6000mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C91, 1991.
quail LD50 oral 1785mg/kg (1785mg/kg)   Pesticide Manual. Vol. 9, Pg. 217, 1991.
rat LC50 inhalation > 2720mg/m3/4H (2720mg/m3)   Pesticide Manual. Vol. 9, Pg. 217, 1991.
rat LD50 oral 3387mg/kg (3387mg/kg)   Pesticide Manual. Vol. 9, Pg. 217, 1991.
rat LD50 skin > 3100mg/kg (3100mg/kg)   Pesticide Manual. Vol. 9, Pg. 217, 1991.

Cyromazine Safety Profile

The Food Safety and Inspection Service (FSIS) of the United States Department of Agriculture (USDA) provides a test method for analyzing cyromazine and Melamine in animal tissues in its Chemistry Laboratory Guidebook which "contains test methods used by FSIS Laboratories to support the Agency's inspection program, ensuring that meat, poultry, and egg products are safe, wholesome and accurately labeled." In 1999, in a proposed rule published in the Federal Register regarding cyromazine residue, the United States Environmental Protection Agency (EPA) proposed "remov[ing] Melamine, a metabolite of cyromazine from the tolerance expression since it is no longer considered a residue of concern."
Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 2
RTECS: XZ1056500

Cyromazine Specification

 Cyromazine , its cas register number is 66215-27-8. It also can be called N-cyclopropyl-1,3,5-triazine-2,4,6-triamine ; 2-Cyclopropylamino-4,6-diamino-s-triazine ; Diamino-6-(cyclopropylamino)-s-triazine ; Cyclopropyl-1,3,5-triazine-2,4,6-triamine ; Cyclopropylmelamine ; Larvadex ; OMS-2014 ; Trigard .It is a crystals.It works by affecting the nervous system of the immature larval stages of certain insects.

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