C4H4N2O2
112.09 g/mol
AgrochemicalWarning
MALEIC HYDRAZIDE
CAS123-33-1EC204-619-9
Category
Agrochemical
Compound Class
Heterocycle
Primary Use
plant growth regulator
Maleic hydrazide is a plant growth regulator that inhibits cell division without affecting cell enlargement. It is commonly applied to stored crops such as potatoes, onions, garlic, and carrots to prevent sprouting during storage.
Prevention of sprouting in stored potatoesPrevention of sprouting in stored onions, garlic, and carrotsControl of volunteer potatoes in the field
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Reading
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H341Suspected of causing genetic defects
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for MALEIC HYDRAZIDE (CAS 123-33-1) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1,2-dihydropyridazine-3,6-dione
InChIKey
BGRDGMRNKXEXQD-UHFFFAOYSA-N
SMILES
C1=CC(=O)NNC1=O
Synonyms (84)
- KMH
- MG-T
- 1,6-dione
- 1,6-pyridazinedione
- 3, 1,2-dihydro-
- 3,6-Dihydroxypyridazine
- 3,6-Dioxopyridazine
- 3,6-Pyridazinediol
- 6-Hydroxy-2H-pyridazin-2-one
- 6-Hydroxy-2H-pyridazin-3-one
- 6-Hydroxy-3(2H)-pyridazinone
- Acid Hydrazide, Maleic
- Antergon
- Antyrost
- Burtolin
- De-cut
- De-sprout
- Drexel-super P
- ENT 18,870
- Fair 30
- Fair PS
- Fair plus
- Fazor
- Gotax
- Hydrazid kyseliny maleinove
- Hydrazide maleique
- Hydrazide, Maleic
- Hydrazide, Maleic Acid
- MALEIC HYDRAZIDE
- MH 30
- MH 36 BAYER
- Maintain 3
- Malazide
- Maleic acid cyclic hydrazide
- Maleic acid hydrazide
- Maleic cyclic hydrazide
- Maleic hydrazide (Standard)
- Maleic hydrazide, PESTANAL(R)
- Maleic hydrazine
- Malein 30
- Maleinsaeurehydrazid
- Maleinsaeurehydrazid [German]
- Malepin
- Malzid
- Mazide
- Meleic hydrazide
- Milurit
- N,N-Maleoylhydrazine
- Pyridazine-3,6(1H,2H)-dione
- Pyridazine-3,6-diol
- Regulox
- Regulox 36
- Regulox 50 W
- Regulox W
- Retard
- Royal mh-30
- Royal slo-gro
- Sorbatran
- Sprout-Stop
- Stuntman
- Sucker-Stuff
- Super sprout stop
- Super sucker-stuff
- Super sucker-stuff hc
- Super-de-sprout
- Unriprim
- Vondalhyde
- Vondrax
- Yadi
- maleinhydrazid
- pyridazine, 3,6-dihydroxy-
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