p, p’-DDE , Analysis standard , 72-55-9

Synonym(s):
p,p-DDE;1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene;1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene solution;4,4′-DDE;4,4′-DDE solution

CAS NO.：72-55-9

Empirical Formula: C14H8Cl4

Molecular Weight: 318.03

MDL number: MFCD00000837

EINECS: 200-784-6

PRODUCT Properties

• Melting point: 88-90 °C(lit.)
• Boiling point: 403.45°C (rough estimate)
• Density: 1.3406 (rough estimate)
• vapor pressure: 13 at 30 °C (Wescott et al., 1981)
• refractive index: 1.6000 (estimate)
• Flash point: 11 °C
• storage temp.: 2-8°C
• solubility: ethanol: soluble
• form: Solid
• color: White, crystalline, odorless powder
• Water Solubility: 292mg/L(25 ºC)
• BRN: 1913355
• Henry's Law Constant: 0.33 at 25 °C (gas stripping-GC, Jantunen and Bidleman, 2006)
• Stability: Stable, but light-sensitive. Incompatible with strong bases, strong oxidizing agents.

Description and Uses

1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane(DDE) has been used to study the ability of Pseudomonas acidovorans M3GY to transform DDE and its unchlorinated analog, 1,1-diphenylethylene (DPE).It has been used to investigate the role of incubation time, solvent type, yeast inoculum growth stage and concentration on the results of yeast assay for estrogenic compounds.

Safety

• Symbol(GHS): GHS06,GHS08,GHS09
• Signal word: Danger
• Hazard statements: H301-H351-H372-H410
• Precautionary statements: P201-P273-P301+P310+P330
• Hazard Codes: Xn,N,T,F
• Risk Statements: 22-40-50/53-52/53-39/23/24/25-23/24/25-11-67-65-38-51/53
• Safety Statements: 36/37-60-61-45-16-7-62-33-29-9
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 3
• RTECS: KV9450000
• HazardClass: 9
• PackingGroup: III
• HS Code: 29036990
• Toxicity: Acute oral LD50 for rats 880 mg/kg (RTECS, 1985).