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Insecticides and acaricides

Menazon

Also known as Azidithion, Saphicol, Saphizon

CAS 78-57-9Formula C6H12N5O2PS2Molar mass 281.30 g/molEC 201-123-4
GHS signal word: Warning. Pictograms: Harmful or irritant 1 supplier listed
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Menazon chemical structure, C6H12N5O2PS2, CAS 78-57-9
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless crystals
Melting point
164 to 166
Solubility
LOW SOLUBILITY IN WATER & ORG SOLVENTS
HS code
293369
Category
Insecticides and acaricides
Illustrative photo, colourless crystals in small glass vials on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Menazon?

Plain description, key identifiers and synonyms

Menazon is a member of triazines.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-(dimethoxyphosphinothioylsulfanylmethyl)-1,3,5-triazine-2,4-diamine
CAS number
78-57-9 CAS number cross-checked
EC number
201-123-4
Molecular formula
C6H12N5O2PS2
UNII
3UO0XR34L1
InChIKey
SUYHYHLFUHHVJQ-UHFFFAOYSA-N
InChI
InChI=1S/C6H12N5O2PS2/c1-12-14(15,13-2)16-3-4-9-5(7)11-6(8)10-4/h3H2,1-2H3,(H4,7,8,9,10,11)
SMILES (canonical and isomeric)
COP(=S)(OC)SCC1=NC(=NC(=N1)N)N

Synonyms

  • Azidithion
  • Saphicol
  • Saphizon
  • Saiphos
  • Sayphos
  • Sayfor
  • Sayfos
  • Syphos
  • Saphizon-dp
  • ENT 25,760
  • 2,4-Diamino-6-dimethoxyphosphinothionylthiomethyl-s-triazine
  • 2-Dimethoxyphosphinothioylthiomethyl-4,6-diamino-s-triazine
  • 4,6-Diamino-1,3,5-triazin-2-ylmethyl O,O-dimethyl phosphorodithioate
  • O,O-Dimethyl S-(4,6-diamino-1,3,5-triazinyl-2-methyl) dithiophosphate
  • S-(4,6-Diamino-1,3,5-triazin-2-ylmethyl) dimethyl phosphorothiolothionate
  • S-(4,6-Diamino-1,3,5-triazin-2-ylmethyl) O,O-dimethyl phosphorodithioate
  • Phosphorodithioic acid, S-((4,6-diamino-s-triazin-2-yl)methyl) O,O-dimethyl ester
  • Phosphorodithioic acid, S-((4,6-diamino-1,3,5-triazin-2-yl)methyl) O,O-dimethyl ester
  • S-((4,6-Diamino-1,3,5-triazin-2-yl)methyl)phosphorodithioic acid O,O-dimethyl ester
  • O,O-Dimethyl s-((4,6-diamino-s-triazin-2-yl)methyl) phosphorodithioate
  • S-((4,6-Diamino-s-triazin-2-yl)methyl)-O,O-dimethyl phosphorodithioate
  • s-Triazine-2-methanethiol, 4,6-diamino-, S-ester with O,O-dimethyl phosphorodithioate
  • Phosphorodithioic acid, S-[(4,6-diamino-1,3,5-triazin-2-yl)methyl] O,O-dimethyl ester
  • Phosphorodithioic acid, S-[(4,6-diamino-S-triazin-2-yl)methyl] O,O-dimethyl ester
  • S-((4,6-diamino-1,3,5-triazin-2-yl)methyl)-O,O-dimethyl phosphorodithioate
Show all 35 synonyms
  • O,O-Dimethyl S-(4,6-diamino-s-triazin-2-ylmethyl)phosphorodithioate
  • O,O-Dimethyl S-(4,6-diamino-1,3,5-triazin-2-yl)methyl phosphorodithioate
  • O,O-Dimethyl S-(4,6-diamino-1,3,5-triazin-2-yl)methyl phosphorothiolothionate
  • s-Triazine-2-methanethiol, 4,6-diamino-, S-ester with O,O-dimethylphosphorodithioate
  • S-((4,6-Diamino-1,3,5-triazin-2-yl)-methyl)-O,O-dimethyl-dithiofosfaat
  • S-((4,6-Diamino-1,3,5-triazin-2-yl)-methyl)-O,O-dimethyl-dithiophosphat
  • Dithiophosphate de O,O-dimethyle et de S-((4,6-diamino-1,3,5-triazine-2-yl)-methyle)
  • O,O-dimethyl {[(4,6-diamino-1,3,5-triazin-2-yl)methyl]sulfanyl}phosphonothioate
  • Saphos
  • 6-(dimethoxyphosphinothioylsulfanylmethyl)-1,3,5-triazine-2,4-diamine

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless crystalsexp.
Odour
LITTLE OR NO ODORexp.
Melting point
164 to 166exp.
Solubility
LOW SOLUBILITY IN WATER & ORG SOLVENTSexp.
Vapour pressure
9.75 × 10⁻⁷ mm Hg at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
281.30 g/molcalc.
Exact mass
281.017 Dacalc.
LogP (octanol/water)
0.79calc.
Topological polar surface area
109.2 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
9calc.
Rotatable bonds
5calc.
Heavy atoms
16calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ncncn1

c1ncncn1

1 ring, 6 atoms, the 1,3,5-Triazine ring system.

1,908 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (6)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Menazon suppliers

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Where suppliers are based

1 supplier in 1 country

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Menazon price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Insecticide, acaricide.

Systemic aphicide.

How it is made

It may be made by reaction of (a) 2,4-diamino-6-chloromethyl-1,3,5-triazine with sodium o,o-dimethyl phosphorodithioate, (b) biguanide with ethyl (dimethoxyphosphinothioylthio)acetate.

Prepn: Calderbank et al, Ger pat 1,118,789 corresp to US pat 3,169,964 (1961, 1965 both to ICI)

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-053-00-5

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Menazon is traded under.

HS 2933.69Indicative HS code

Compounds containing an unfused triazine ring (whether or not hydrogenated) in the…

World exports in 2024
$2.46B
+1.8% vs 2023, imports $2.44B
2019 to 2024
Top exporters
  1. China53.6%
  2. Germany11.5%
  3. India * partner reported8.4%
Top importers
  1. United States13.5%
  2. Brazil9.6%
  3. Germany9.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Menazon is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Menazon, based on the data on this page

What is Menazon?

Menazon is a member of triazines.

What is the CAS number of Menazon?

The CAS registry number of Menazon is 78-57-9.

What is the molecular formula and weight of Menazon?

The molecular formula of Menazon is C6H12N5O2PS2 and its molar mass is 281.30 g/mol.

What is Menazon used for?

Insecticide, acaricide. Systemic aphicide.

Is Menazon hazardous?

Menazon carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Menazon?

Menazon is usually classified under HS code 293369 (Compounds containing an unfused triazine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Menazon?

CompoundList lists 1 supplier of Menazon in Japan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Menazon?

Suppliers quote Menazon on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Menazon

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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