Molekula
Paclobutrazol
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Paclobutrazol is a plant growth regulator used in agriculture to control excessive vegetative growth in crops. It is a triazole compound that inhibits gibberellin synthesis, promoting compact plant growth and improved yield. Available in powder form, it has a CAS number of 76738-62-0, molecular formula C15H20ClN3O, and a molecular weight of 293.79 g/mol. It should be stored at ambient temperatures. Hazard classification includes the signal word Danger. Molekula supplies Paclobutrazol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £46.50 per pack ex VAT · £55.80 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Identification | Conforms to reference |
| pH | 4 - 9 |
| Assay | ≥ 95% |
| Acetone Insoluble | ≤ 0.5% |
| Water (KF) | ≤ 0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 4.1 |
| Packing Group | II |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 89992374 |
| CAS Number | 76738-62-0 |
| IUPAC Name | (2S,3S)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol |
| EC Number | 266-325-7 |
| Molecular Formula | C15H20ClN3O |
| Molecular Weight | 293.79 |
| Exact Mass | 293.1295 |
| SMILES | CC(C)(C)[C@@H]([C@H](CC1=CC=C(C=C1)Cl)N2C=NC=N2)O |
| InChIKey | RMOGWMIKYWRTKW-UONOGXRCSA-N |
| InChI | InChI=1S/C15H20ClN3O/c1-15(2,3)14(20)13(19-10-17-9-18-19)8-11-4-6-12(16)7-5-11/h4-7,9-10,13-14,20H,8H2,1-3H3/t13-,14+/m0/s1 |
| PubChem CID | 73671 |
| UN Number | UN1325 |
| REACH Code | Y110 |
| HTS Code | 2933.39.9200 |
| Tariff Code | 2933399999 |
Safety & GHS
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Flammable
GHS02
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H228 Flammable solid
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H332 Harmful if inhaled
- H361d Suspected of damaging fertility. Suspected of damaging the unborn child.
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P307+311 IF exposed: Call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (2S,3S)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol
- (2S,3S)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol
- 1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol
- Bonzi
- Caswell No. 628C
- Clipper 50WP
- Cultar
- Friazole
- Parlay
- Trimmit
Frequently asked questions
What is Paclobutrazol used for?
Paclobutrazol is a plant growth regulator used in agriculture to control excessive growth in crops, improve yield, and enhance stress resistance.
What is the chemical formula and molecular weight of Paclobutrazol?
The chemical formula is C15H20ClN3O, and the molecular weight is 293.79 g/mol.
How should Paclobutrazol be stored?
Paclobutrazol should be stored at ambient temperature, away from moisture and direct sunlight.
What grade of Paclobutrazol is available?
Molekula supplies Paclobutrazol in technical grade, suitable for agricultural applications.
Can Molekula supply Paclobutrazol in bulk?
Yes, Molekula can supply Paclobutrazol in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a Paclobutrazol order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) for compliance and safety.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.