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Chemical Identification
Common Name
Blasticidin-S
中文通用名
灰瘟素
IUPAC
1-(4-amino-1,2-dihydro-2-oxopyrimidin-1-yl)-4-[(S)-3-amino-5-(1-methylguanidino)valeramido]-1,2,3,4-tetradeoxy-β-D-erythro-hex-2-enopyranuronic acid
CAS
(S)-4-[[3-amino-5-[(aminoiminomethyl)methylamino]-1-oxopentyl]amino]-1-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1,2,3,4-tetradeoxy-β-D-erythro-hex-2-enopyranuronic acid
CAS No.
2079-00-7
Molecular Formula
C17H26N8O5
Molecular Structure
Physical Properties
Molecular weight:422.4; Physical form:Colourless needles; ( tech., light brown solid). Melting point:235-236 °C ( decomp.); pKa: pKa1 2.4 (carboxyl), pKa2 4.6, pKa3 8.0, pKa4 >12.5 (three bases); Solubility:In water >30 g/l (20 °C). In acetic acid >30 g/l (20 °C). Practically insoluble in acetone, benzene, carbon tetrachloride, chloroform, cyclohexane, dioxane, ethanol, diethyl ether, ethyl acetate, methanol, pyridine, xylene.;
Toxicology
Oral:Acute oral LD50 for male rats 56.8, female rats 55.9, male mice 51.9, female mice 60.1 mg/ kg. Percutaneous:Acute percutaneous LD50 for rats >500 mg/kg. Severe eye irritant. Phytotoxicity:Damage can be caused to alfalfa, aubergines, clover, potatoes, soya beans, tobacco, and tomatoes. Excessive application produces yellow spots on rice leaves. Formulated as the benzylaminobenzenesulfonate to reduce phytotoxicity. ADI:( JMPR) 0.01 mg/ kg b.w. [1998].
Environmental Profile
Ecotoxicology: Daphnia:LC50 (3 h) for D. pulex >40 mg/l.Fish:LC50 (48 h) for carp >40 mg/l. Environmental fate: Animals:Almost all of 3H-blasticidin-S administered to mice was excreted in the urine and faeces within 24 h.Soil:In soil, DT50 <2 d (two soil types, o.c. 2.53%, 9.6%; moisture 42.6%, 87%, respectively; pH 6.0, 25 °C).Plant:In rice plants, cytomycin and deaminohydroxy blasticidin-S were identified as the main metabolites.
Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)

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