isatidine Property

Melting point:

145°C

Boiling point:

497.95°C (rough estimate)

Density 

1.3204 (rough estimate)

refractive index 

1.5100 (estimate)

pka

11.96±0.40(Predicted)

IARC

3 (Vol. 10, Sup 7) 1987

EPA Substance Registry System

Isatidine (15503-86-3)

Safety

RIDADR 

1544

HazardClass 

6.1(a)

PackingGroup 

II

Hazardous Substances Data

15503-86-3(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H300Fatal if swallowed

H373May cause damage to organs through prolonged or repeated exposure

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P314Get medical advice/attention if you feel unwell.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P405Store locked up.

P501Dispose of contents/container to..…

isatidine Chemical Properties,Usage,Production

Description

This hepatotoxic alkaloid occurs in certain Senecio species and was first isolated from S. isatideus D.C. It occurs abundantly in S. retrorsus D.C. and S. scleratus Schw. The alkaloid crystallizes in rhombic prisms as the dihydrate and has [α]²⁷_D . 8.25° (H 20). It is soluble in MeOH, hot EtOH and hot H20 but virtually insoluble in Et 20, Me2CO or CHCl 3. On reduction it absorbs 4 molecules of H2 to give hexahydrodeoxyisatidine which melts at l15-l20°C and then remelts at l83-4°C following an intermediate solidification. This compound gives a hydrochloride, m.p. 218°C (dec.); [α]²⁰_D - 52.5° (H20) and may be hydrolyzed with Ba(OHh to give a basic product, tetrahydroisatinecine, CSH1703N, m.p. l74.5°C; [α]²⁰_D - 88° (H 20). The alkaloid itself, on hydrolysis with Ba(OHh yields isatinecine and two acid products, isatinecic acid and the monolactone, the latter almost certainly being formed by the action of the base upon the acid.

Uses

Retrorsine N-oxide-D4 is a labelled analogue of Retrorsine N-oxide (R279005). Retrorsine N-oxide is a pyrrolizidine alkaloid that is naturally found in Senecio isatideus, a flowering plant that is native to the Netherlands. Retrorsine N-oxide is also known to raise blood pressure and can induce abnormal changes in the liver if ingested by animals or humans.

Definition

ChEBI: Isatidine is a citraconoyl group.

Safety Profile

Poison by ingestion and intraperitoneal routes. Moderately toxic by intravenous route. Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NO,. See also ESTERS.

References

Blackie., Pharrn. J., 138, 102 (1937) de Waal., Onderstepoort J., 12, 155 (1939) de Waal., Nature, 146, 777 (1940) de Waal., Pretorius., OnderstepoortJ., 17,181 (1941) Leisegang, Warren., J. Chern. Soc., 702 (1950)