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6-Benzylaminopurine (6-BA)

Identification

Synonyms: 6-benzyladenine (IUPAC); 6-BAP; 6-BA; BAP; N6-benzyladenine; 'BA' (Kumiai); 'Beanin' (Riken Green); 'MaxCel' (Valent BioSciences); 'Paturyl' (Reanal); mixtures 'Accel' (+ gibberellin A4 with gibberellin A7) (Canada) (Valent BioSciences); 'Promalin' (+ gibberellin A4 with gibberellin A7) (Valent BioSciences); 'Rocca Pro' (+ gibberellin A4 with gibberellin A7) (Rocca). Other products 'Agrimix Top' (Agrimix); 'Brancher Dirado' (Agrimport); 'Cyclex' (Valent BioSciences); 'Exilis' (Fine); 'Expander' (Agrimport); 'GerBA' (Gobbi); 'GerBAthin' (Gobbi); 'Globaryll' (Globachem); 'ProShear' (Valent BioSciences); 'Richer' (Efal); 'Riteway' (Nufarm Americas); mixtures 'Agrimix Pro' (+ gibberellin A4 with gibberellin A7) (Agrimix); 'Fascination' (+ gibberellin A4 with gibberellin A7) (Valent); 'Genial Pro' (+ gibberellin A4 with gibberellin A7) (Chimiberg); 'Perlan' (+ gibberellin A4 with gibberellin A7) (de Sangosse, Fine); 'Profile' (+ gibberellic acid) (Agrimport); 'Progerbalin' (+ gibberellin A4 with gibberellin A7) (Gobbi); 'Ritesize' (+ gibberellin A4 with gibberellin A7) (Nufarm Americas); 'Rogistar' (+ gibberellin A4 with gibberellin A7) (Hermoo); 'Typy' (+ gibberellin A4 with gibberellin A7) (Nufarm Americas).
CAS No.: 1214-39-7
Molecular Weight: 225.25
Molecular Formula: C12H11N5
Structural Formula: 6-BA (6-Benzylaminopurine)
Form: Colourless, odourless, fine needles; (tech. is an off-white powder).
M.p.: 232.4 °C
B.p.: 306.2 °C/1330 Pa
V.p.: <1.48 × 10-1 mPa (20 °C)
Kow: logP = 2.19 (pH 7), 2.13 (pH 5) (both 20 °C)
S.g./density: 1.374 (20 °C)
Solubility: In water 62.2 mg/l (20 °C). In methanol 6.71, ethyl acetate 0.722, n-hexane <0.01, acetone 1.39, toluene 0.0214, dichloromethane 0.251 (all in g/l, 20 °C).
Stability: Stable in acidic, alkaline and neutral aqueous solution; hydrolysis DT50 >1 y (pH 4, 7 and 9, 25 °C). Aqueous photolysis DT50 2.5 d in natural water, 12.8 d in distilled water (both 25 °C, 400 W/m2, 300–800 nm). Stable to heat at 150 °C; decomposes at 400 °C.
pKa: 3.86 and 9.89 (22 °C)

Application

6-Benzylaminopurine (6-BA) stimulates RNA, RuDP-carboxylase, NADP-glyceraldehyde-3-phosphate-dehydrogenase, protein synthesis. Mode of action Synthetic cytokinin; little translocated. Used to stimulate the following effects: cell division; lateral bud emergence (apples, pears, oranges); basal shoot formation (roses, orchids); flowering (cyclamen, cacti); fruit set (grapes, oranges, melons); causes abscission of young fruitlets, leading to increased fruit size, stimulates flower bud formation and regular bearing in fruit trees. Inhibits senescence of rice seedlings. Enhances lateral bud break and lateral shoot growth, leading to fuller white pine trees. Also causes uniform bolting and increased seed production in spinach. Applied by foliar application, soaking, or painting. Its limited ability to translocate is utilised to restrict effects to the target part of the plant, by local application. Applied at 30 g/a for apple trees.

Specification*

6-Benzylaminopurine (6-BA) Content 99% min.
m.p. 230-233°C
Residues after ignition 0.1% max.
Loss on drying 0.5% max.

Standard Packaging

0.5kg, 1kg, 2kg/aluminum foil bag, 25kg/carton, 25kg/fiber drum

Packaging photo coming soon

Risks and Safety Information

6-Benzylaminopurine (6-BA) is not regulated by UN as hazardous substance.
Acute oral LD50 for male rats 2125, female rats 2130, mice 1300 mg/kg. Skin and eye Acute percutaneous LD50 for rats >5000 mg/kg. Not a skin or eye irritant (rabbits). Not a skin sensitiser. Birds LD50 (14 d) for northern bobwhite quail >2250 mg/kg. Fish LC50 (96 h) for carp 38.5 mg/l. Algae EC50 (72 h) for Selenastrum capricornutum 48.7 mg/l. Bees LD50 (oral) 400 μg/bee, (contact) 57.8 l/ha (both ‘Paturyl’ 10 SL formulation). LD50 (oral) >100 μg a.i./bee.

No Hazard

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