Temephos

About Temephos

Temephos is an analytical reagent carrying the CAS registry number 3383-96-8. The compound has the formula C16H20O6P2S3, corresponding to a molecular weight of 466.5 g/mol. The IUPAC name is [4-(4-dimethoxyphosphinothioyloxyphenyl)sulfanylphenoxy]-dimethoxy-sulfanylidene-lambda5-phosphane. It is also known as Temefos or Nephis 1G.

Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 7 hazard statements. Review the Safety Data Sheet before use.

Key uses span agrochemical formulations and laboratory analysis. Buyers come mainly from academic and industrial research and agrochemical production.

Available in 100 mg, 250 mg, 1 g and 5 g packs, Temephos is dispatched with a Certificate of Analysis (COA) to destinations worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Agrochemical formulations
Laboratory analysis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Temephos
Catalogue No.	VQ-039405
CAS Number	3383-96-8
IUPAC name	[4-(4-dimethoxyphosphinothioyloxyphenyl)sulfanylphenoxy]-dimethoxy-sulfanylidene-lambda5-phosphane
Molecular formula	C₁₆H₂₀O₆P₂S₃
Molecular weight	466.5 g/mol
Exact mass	465.9897
InChIKey	WWJZWCUNLNYYAU-UHFFFAOYSA-N
SMILES	COP(=S)(OC)OC1=CC=C(C=C1)SC2=CC=C(C=C2)OP(=S)(OC)OC
PubChem CID	5392

Physical properties
Physical form	Other
LogP (XLogP3)	6
H-bond donors / acceptors	0 / 9
TPSA	145 Å²
Synonyms	Temefos, Nephis 1G, Swebate, Ecopro 1707, Diphos (pesticide), Experimental insecticide 52160, Azai-ss, American cyanamid CL-52160, American cyanamid AC 52,160, American cyanamid E.I. 52,160, Phosphorothioic acid, O,O'-(thiodi-4,1-phenylene) O,O,O',O'-tetramethyl ester

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H311Toxic in contact with skin
H312Harmful in contact with skin
H332Harmful if inhaled
H372Causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P260, P261, P262, P264, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P316, P317, P319, P321, P330, P361 + P364, P362 + P364, P391, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Temephos?

The CAS Registry Number of Temephos is 3383-96-8. It is also known as Temefos, Nephis 1G, Swebate.

What is the molecular formula and molecular weight of Temephos?

Temephos has the molecular formula C16H20O6P2S3 and a molecular weight of 466.5 g/mol. Its IUPAC name is [4-(4-dimethoxyphosphinothioyloxyphenyl)sulfanylphenoxy]-dimethoxy-sulfanylidene-lambda5-phosphane.

Which grade and pack sizes of Temephos can I order?

We supply Temephos, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Temephos?

Yes. Every lot of Temephos is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Temephos be shipped internationally?

Yes. Temephos is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.