N-(2-chloro-4-pyridyl)-n'-phenylurea （KT-30, CPPU）
| Product name: |
N-(2-chloro-4-pyridyl)-n'-phenylurea （KT-30, CPPU） |
| CAS No.: |
68157-60-8 |
| Content: |
99% |
| Appearance: |
White crystal
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| Structural formula: |
 |
| Other: |
Melting point: 170-172°C
Loss on drying: <0.5%
Reside on ignition: <0.2%
Toxicity: Acute oral LD50: male rats 2787 mg / kg, female rats 1568 mg / kg, male mice 2218 mg / kg, female mice 2783 mg / kg; rabbit acute percutaneous LD50 > 2000 mg / kg. It is mild to the skin and irritating to the eyes. Acute inhalation LC50 (4 hours) in rats: Not lethal in saturated steam. The no-effect dose was 7.5 mg/kg body weight. Fish LC50: rainbow trout (96 hours) 9.2 mg/l, salmon (48 hours) 8.6 mg/l.
Uses: It is a phenylurea plant growth regulator with cytokinin activity, which is 10-100 times more biologically active than 6-benzylaminopurine. Widely used in agriculture, horticulture and fruit trees, promote cell division, promote cell elongation, promote fruit hypertrophy; increase yield; preservation.
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