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Sodium methanolate - ipcs inchem

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OECD SIDS<br />

SODIUM METHANOLATE<br />

5. TOXICITY ID: 124-41-4<br />

DATE: 28.06.2006<br />

Vehicle : water<br />

Doses : 215, 316, 464, 681, 1000 mg/kg<br />

Method : other: comparable to OECD Guide-line 401<br />

Year : 1978<br />

GLP : no<br />

Test substance : other TS: <strong>Sodium</strong> methylate<br />

Remark : As the substance was tested in aqeous solution and sodium methylate<br />

hydrolyses rapidly to methanol and sodium hydroxide, in fact the hydrolysis<br />

products have been tested.<br />

Result : Mortality: All animals of the 1000 mg/kg bw. group died between 1 h and 1<br />

day p.a..<br />

Symptoms:<br />

All dose groups:<br />

dyspnea, apathy<br />

from 316 mg/kg additionally yellow discoloration of the urine.<br />

from 681 mg/kg: spastic and staggered gait.<br />

at 1000 mg/kg: anomal posture, atonia, reddening of skin, loss of pain<br />

reflex, narcotic condition.<br />

Pathology<br />

Macroscopic examination:<br />

Animals that wer killed after termination of the study did not reveal any<br />

macroscopic organ changes.<br />

Animals that died during the study:<br />

Dilatation of right heart, discoloration of right ventricle, acute comgestive<br />

hyperaemia. Stomach: atonic, fluid stomach content, forestomach: diffuse<br />

reddening, vascular injection. Intestines: atonic, diarrhoea.<br />

Test condition : TEST ORGANISMS: malae and female Spraque Dawley rats<br />

- Source: Herilan, Eggersmann KG<br />

- Initial body weight: males: 220-230 g, females: 180-200g<br />

- Number of animals: 5 males, 5 females per dose group<br />

ADMINISTRATION:<br />

- Type of exposure: gavage, Volume 10 ml/kg<br />

- Concentrations: 2.15, 3.16, 4.64, 6.81, 10 % (G/V)<br />

14 Days observation period.<br />

EXAMINATIONS:<br />

Symptoms<br />

Mortality<br />

Body weight development<br />

Macroscopic exmination at termination or after death of the animals.<br />

Test substance : <strong>Sodium</strong> Methylate as prescribed by 1.1 - 1.4 of CAS 124-41-4<br />

Reliability : (2) valid with restrictions<br />

Well documented study.<br />

Flag : Critical study for SIDS endpoint<br />

05.12.2005 (2)<br />

5.1.2 ACUTE INHALATION TOXICITY<br />

Type : other: acute inhalation risk test (IRT)<br />

Value :<br />

Species : rat<br />

Strain : no data<br />

Sex : no data<br />

Number of animals : 12<br />

Vehicle :<br />

Doses : atmosphere enriched with volatile parts at 20 °C<br />

Exposure time : 8 hour(s)<br />

Method : other: according to Smyth et al.: Am. Ind. Hyg. Ass. J. 23, 95-107, 1962<br />

60<br />

UNEP PUBLICATIONS

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