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LN1250945

α-EndosulfanD4 , 100ng/μL solution: acetone , 115-29-7

CAS NO.:115-29-7

Empirical Formula: C9H6Cl6O3S

Molecular Weight: 406.93

MDL number: MFCD00137651

EINECS: 204-079-4

Update time: 2022-07-08

PRODUCT Properties

Melting point: 106°C
Boiling point: 106 °C(Press: 0.70 Torr)
Density  1.7450
vapor pressure  8.3 x 10-4 Pa (25 °C) for 2:l mixture of α- and β-isomers
Flash point: -26 °C
storage temp.  APPROX 4°C
solubility  Chloroform (Slightly), DMSO (Slightly), Methanol (Sparingly)
Water Solubility  <0.1 g/100 mL at 23 ºC
Merck  13,3608
BRN  2062338
CAS DataBase Reference 115-29-7(CAS DataBase Reference)
NIST Chemistry Reference Endosulfan(115-29-7)
EPA Substance Registry System Endosulfan (115-29-7)

Description and Uses

Endosulfan (70) [115-29-7], 6,7,8,9,10,10- hexachloro-1,5,5a,6,9,9a-hexahydro-6,9-methano-2,4,3,- benzo-dioxathiepine 3-oxide (IUPAC) [The technical product is a mixture of two isomers: α-endosulfan: 3α,5αβ,6α, 9α,9αβ (64–67%) (70a) and β-endosulfan 3α,5aα,6β,9β, 9aα, (29–32%) (70b)]; [959-98-8] (formerly [33213-66- 0]) (β-endosulfan);[33213-65-9] (formerly [891-86-1] and [19670-15-6]) (β-endosulfan) is the adduct of hexachlorocyclopentadiene and 1,4-dihydroxy-2-butene reacted further with SOCl2 to produce 6,7,8,9,10,10-hexachloro- 1,5,5a,6,9,9a-hexahydro-6,9-methano-2,4,3-benzodioxa thiepin-3-oxide. The technical product is a brownish solid, mp 70–100 ?C, vapor pressure 1.3 mPa at 25 ?C, soluble in petroleum solvents but having low solubility in water. It consists of about four parts of α-isomer (mp 108 ?C, cis with regard to the sulfite group) and one part of the β-isomer (mp 206 ?C, trans with regard to the sulfite group). The α-isomer, which is somewhat more insecticidal, is slowly converted to the more stable β-isomer at high temperature, and both isomers are oxidized slowly to endosulfan sulfate [1031-07-8] (mp 181 ?C). In acid media, both isomers form endosulfan diol [2157-19-9] (mp 203 ?C).

Endosulfan is used for the control of sucking, chewing, boring insects and mites on a wide variety of crops. It also controls tsetse flies.

Safety

Symbol(GHS) 
GHS06,GHS09
Signal word  Danger
Hazard statements  H300+H310+H330-H410
Precautionary statements  P260-P262-P273-P280-P302+P352+P310-P304+P340+P310
Hazard Codes  T,N,Xn,F,T+
Risk Statements  24/25-36-50/53-67-65-62-51/53-48/20-38-11-26/28-21
Safety Statements  28-36/37-45-60-61-62-63-33-29-16-9
RIDADR  UN 2761
OEB D
OEL TWA: 0.1 mg/m3 [skin]
WGK Germany  3
RTECS  RB9275000
HazardClass  6.1(a)
PackingGroup  II
HS Code  29209090
Hazardous Substances Data 115-29-7(Hazardous Substances Data)
Toxicity LD50 orally in male, female rats: 43, 18 mg/kg (Gaines)

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