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Cas Database |
| Name |
3,6-Dihydroxypyridazine |
EINECS | 204-619-9 |
| CAS No. | 123-33-1 | Density | 1.321 g/cm3 |
| PSA | 65.72000 | LogP | -0.93680 |
| Solubility | 6 g/L | Melting Point |
299-301 °C (dec.)(lit.) |
| Formula | C4H4N2O2 | Boiling Point | 477.2 °C at 760 mmHg |
| Molecular Weight | 112.088 | Flash Point | 242.4 °C |
| Transport Information | UN 3077 9/PG 3 | Appearance | Crystalline |
| Safety | 26-36-45-36/37/39 | Risk Codes | 36/37/38-40 |
| Molecular Structure |
|
Hazard Symbols |
 Xn, Xi
|
| Synonyms |
3(2H)-Pyridazinone,6-hydroxy- (6CI,7CI);1,2-Dihydro-3,6-pyridazinedione;3,6-Dioxopyridazine;3,6-Pyridazinediol;6-Hydroxy-3(2H)-pyridazinone;Antergon;Antyrost;MAH;MH;Sorbatran;SuperDe-Sprout;Yadi;Yake;MH (hydrazide);Maleic acid cyclic hydrazide;Maleic cyclic hydrazide;Maleic hydrazide;Malepin;Malzid;Mazide;NSC 13892;NSC 234167;NSC 48832;NSC 8823;Regulox 36;Royal Slo-Gro; |
Article Data | 44 |
3,6-Dihydroxypyridazine Synthetic route
Conditions
| Conditions | Yield |
|---|---|
| With hydrazine hydrate; sulfuric acid; lanthanum(lll) triflate In water at 30 - 120℃; for 10.5h; Temperature; Reagent/catalyst; | 97.2% |
| With hydrazine hydrate In water at 100℃; for 3h; | 92% |
| With hydrogenchloride; hydrazine hydrate In water Cooling with ice; Reflux; | 86% |
Conditions
| Conditions | Yield |
|---|---|
| With hydrazine hydrate In water at 95℃; for 3h; Reagent/catalyst; Time; | 90% |
| With water; hydrazine |
- 18259-51-3
1-oxy-2H-pyridazin-3-one
- 123-33-1
Maleic hydrazide
Conditions
| Conditions | Yield |
|---|---|
| With acetic anhydride |
- 5343-00-0, 15189-88-5
N,N'-bis-(3c-carboxy-acryloyl)-hydrazine
- 123-33-1
Maleic hydrazide
Conditions
| Conditions | Yield |
|---|---|
| With water |
Conditions
| Conditions | Yield |
|---|---|
| Verb. 1 = 1 Mol; |
Conditions
| Conditions | Yield |
|---|---|
| In acetic acid for 3h; Reflux; |
Conditions
| Conditions | Yield |
|---|---|
| With hydrogen; palladium on activated charcoal In ethanol | 95% |
| With ethanol; platinum at 100℃; under 2942.03 Torr; Hydrogenation; | |
| With ethanol; aluminium amalgam |
Conditions
| Conditions | Yield |
|---|---|
| With 1-methyl-2-pyrrolidinone hydrosulfate In neat (no solvent) at 85℃; for 0.05h; Green chemistry; | 94% |
- 123-33-1
Maleic hydrazide
- 104-88-1
4-chlorobenzaldehyde
- 126-81-8
dimedone
- 1091592-75-4
11-(4-chlorophenyl)-3,3-dimethyl-11-3,4-dihydro-1H-pyridazino[1,2-a]indazole-1,6,9(2H,11H)-trione
Conditions
| Conditions | Yield |
|---|---|
| With 1-methyl-2-pyrrolidinone hydrosulfate In neat (no solvent) at 85℃; for 0.0833333h; Green chemistry; | 93% |
| With toluene-4-sulfonic acid at 80℃; for 0.333333h; neat (no solvent); | 49% |
- 123-33-1
Maleic hydrazide
- 555-16-8
4-nitrobenzaldehdye
- 126-81-8
dimedone
- 1091592-76-5
3,3-dimethyl-11-(4-nitrophenyl)-2,3,4,11-tetrahydro-1H-pyridazino[1,2-a]indazole-1,6,9-trione
Conditions
| Conditions | Yield |
|---|---|
| With 1-methyl-2-pyrrolidinone hydrosulfate In neat (no solvent) at 85℃; for 0.05h; Green chemistry; | 93% |
| With toluene-4-sulfonic acid at 80℃; for 0.416667h; neat (no solvent); | 48% |
3,6-Dihydroxypyridazine Chemical Properties
1,2-DIHYDROPYRIDAZINE-3,6-DIONE(123-33-1) is the chemical compound with the formula C4H4N2O2.Its molar weight is 112.09g/mol.
1,2-DIHYDROPYRIDAZINE-3,6-DIONE(123-33-1) is also named 1,2-dihydro-6-pyridazinedione;3(2H)-Pyridazinone, 6-hydroxy-;3,6-Dihydroxypridazine;3,6-Dioxopyridazine;3,6-Pyridazinedione, 1,2-dihydro-;6-Hydroxy-2H-pyridazin-2-one;6-hydroxy-3(2h)-pyridazinon.
Melting point: 299-301 oC (dec.)(lit.)
Density: 1.6 g/cm3
Flash Point: 300oC
Boiling Point: 477.2 oC at 760 mmHg
Storage temp.: 0-6oC
Water Solubility: 6 g/L
Index of Refraction: 1.501
Molar Refractivity: 25 cm3
Molar Volume: 84.8 cm3
Surface Tension: 41.3 dyne/cm
Enthalpy of Vaporization: 76.93 kJ/mol
Vapour Pressure: 9.9E-10 mmHg at 25oC
The chemical structure of 1,2-DIHYDROPYRIDAZINE-3,6-DIONE(123-33-1) is
.
1,2-DIHYDROPYRIDAZINE-3,6-DIONE(123-33-1) is also named 1,2-dihydro-6-pyridazinedione;3(2H)-Pyridazinone, 6-hydroxy-;3,6-Dihydroxypridazine;3,6-Dioxopyridazine;3,6-Pyridazinedione, 1,2-dihydro-;6-Hydroxy-2H-pyridazin-2-one;6-hydroxy-3(2h)-pyridazinon.
Melting point: 299-301 oC (dec.)(lit.)
Density: 1.6 g/cm3
Flash Point: 300oC
Boiling Point: 477.2 oC at 760 mmHg
Storage temp.: 0-6oC
Water Solubility: 6 g/L
Index of Refraction: 1.501
Molar Refractivity: 25 cm3
Molar Volume: 84.8 cm3
Surface Tension: 41.3 dyne/cm
Enthalpy of Vaporization: 76.93 kJ/mol
Vapour Pressure: 9.9E-10 mmHg at 25oC
The chemical structure of 1,2-DIHYDROPYRIDAZINE-3,6-DIONE(123-33-1) is
.3,6-Dihydroxypyridazine Uses
1,2-DIHYDROPYRIDAZINE-3,6-DIONE(123-33-1) is used as a herbicide and plant-growth inhibitor. It is used to control suckering of tobacco, for weed control and as a sugar content stabilizer in beets.
3,6-Dihydroxypyridazine Toxicity Data With Reference
| 1. | cyt-grh-orl 5 mg | CYTOAN Cytologia. 37 (1972),345. | ||
| 2. | mma-sat 50 µL/plate | MUREAV Mutation Research. 66 (1979),247. | ||
| 3. | dns-esc 30 µmol/L | ZKKOBW Zeitschrift fuer Krebsforschung und Klinische Onkologie. 92 (1978),177. | ||
| 4. | sln-dmg-orl 4000 ppm | MUREAV Mutation Research. 55 (1978),15. | ||
| 5. | sln-dmg-par 4000 ppm | NATUAS Nature. 207 (1965),439. | ||
| 6. | cyt-mus-ipr 5000 ppm | CISCB7 CIS, Chromosome Information Service. 20 (1976),28. | ||
| 7. | orl-rat LD50:3800 mg/kg | WRPCA2 World Review of Pest Control. 9 (1970),119. |
3,6-Dihydroxypyridazine Consensus Reports
IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 4 ,1974,p. 173.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory.
3,6-Dihydroxypyridazine Safety Profile
Moderately toxic by ingestion. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. Can cause chronic liver damage and acute central nervous system effects. When heated to decomposition it emits highly toxic fumes of NOx. See also HYDRAZINE.
Hazard Codes:
Xi,Xn
Risk Statements: 36/37/38-40
36/37/38: Irritating to eyes, respiratory system and skin
40: Limited evidence of a carcinogenic effect
Safety Statements: 26-36-45-36/37/39
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
RIDADR: UN 3077 9/PG 3
WGK Germany: 2
RTECS: UR5950000
HS Code: 29339990
Hazardous Substances Data: 123-33-1(Hazardous Substances Data).
Hazard Codes:
Xi,Xn Risk Statements: 36/37/38-40
36/37/38: Irritating to eyes, respiratory system and skin
40: Limited evidence of a carcinogenic effect
Safety Statements: 26-36-45-36/37/39
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
RIDADR: UN 3077 9/PG 3
WGK Germany: 2
RTECS: UR5950000
HS Code: 29339990
Hazardous Substances Data: 123-33-1(Hazardous Substances Data).
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