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ChemicalBook >> CAS DataBase List >> DIANTIPYRYLMETHANE

DIANTIPYRYLMETHANE

$13 - $912.29
Product name: DIANTIPYRYLMETHANE
CAS: 1251-85-0
MF: C23H24N4O2
MW: 388.46
EINECS:215-009-7
MDL Number:MFCD00003147
Synonyms:TOSLAB 33092;DIANTIPYRRYLMETHANE;DIANTIPYRYLMETHANE;4,4'-METHYLENEDIANTIPYRINE;4,4’-methylenebis(1,2-dihydro-1,5-dimethyl-2-phenyl)-3H-Pyrazol-3-one ;4,4’-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-3h-pyrazol-3-on ;Bisantipyrylmethane;Diantipyrinylmethane

Price21 Properties Safety Information Description

21 prices

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Brand

aablocks
AHH
American Custom Chemicals Corporation
Chem-Impex
Crysdot
Frontier Specialty Chemicals
Matrix Scientific
Sigma-Aldrich
TCI Chemical
TRC

Package

2.5G
5G
10g
25g
50g
100g
500g
1000g

Manufactureraablocks
Product numberAA000N3D
Product description3H-Pyrazol-3-one, 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-
Packaging25g
Price$14
Updated2026-05-25
Buy

Manufactureraablocks
Product numberAA000N3D
Product description3H-Pyrazol-3-one, 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-
Packaging100g
Price$44
Updated2026-05-25
Buy

Manufactureraablocks
Product numberAA000N3D
Product description3H-Pyrazol-3-one, 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-
Packaging500g
Price$161
Updated2026-05-25
Buy

ManufacturerAHH
Product numberMT-07884
Product descriptionDiantipyrylmethane 98%
Packaging1000g
Price$375
Updated2021-12-16
Buy

ManufacturerAHH
Product numberMT-07884
Product descriptionDiantipyrylmethane 97%
Packaging1000g
Price$375
Updated2026-05-25
Buy

ManufacturerAHH
Product numberMT-07884
Product descriptionDiantipyrylmethane 97%
Packaging1000g
Price$375
Updated2026-05-26
Buy

ManufacturerAmerican Custom Chemicals Corporation
Product numberCHM0097509
Product description4-[(1,5-DIMETHYL-3-OXO-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-4-YL)METHYL]-1,5-DIMETHYL-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-3-ONE 95.00%
Packaging2.5G
Price$796.77
Updated2021-12-16
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ManufacturerAmerican Custom Chemicals Corporation
Product numberCHM0097509
Product description4-[(1,5-DIMETHYL-3-OXO-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-4-YL)METHYL]-1,5-DIMETHYL-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-3-ONE 95.00%
Packaging5G
Price$912.29
Updated2021-12-16
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ManufacturerChem-Impex
Product number43603
Product description4,4'-Diantipyrylmethane monohydrate [for Ti Analysis] 98-102%(Assaybytitration)
Packaging25G
Price$53.68
Updated2026-05-19
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ManufacturerChem-Impex
Product number43603
Product description4,4'-Diantipyrylmethanemonohydrate[forTiAnalysis],98-102%(Assaybytitration) 98-102%(Assaybytitration)
Packaging25G
Price$42.75
Updated2021-12-16
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ManufacturerCrysdot
Product numberCD11315399
Product description4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%
Packaging100g
Price$89
Updated2026-05-27
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ManufacturerCrysdot
Product numberCD11315399
Product description4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%
Packaging100g
Price$89
Updated2026-05-20
Buy

ManufacturerCrysdot
Product numberCD11315399
Product description4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%
Packaging100g
Price$89
Updated2021-12-16
Buy

ManufacturerFrontier Specialty Chemicals
Product numberJK289401
Product descriptionDiantipyrylmethane 98%
Packaging10g
Price$13
Updated2021-12-16
Buy

ManufacturerFrontier Specialty Chemicals
Product numberJK289401
Product descriptionDiantipyrylmethane 98%
Packaging50g
Price$47
Updated2021-12-16
Buy

ManufacturerMatrix Scientific
Product number099039
Product description4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%
Packaging25g
Price$258
Updated2021-12-16
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA000N3D	3H-Pyrazol-3-one, 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-	25g	$14	2026-05-25	Buy
aablocks	AA000N3D	3H-Pyrazol-3-one, 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-	100g	$44	2026-05-25	Buy
aablocks	AA000N3D	3H-Pyrazol-3-one, 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-	500g	$161	2026-05-25	Buy
AHH	MT-07884	Diantipyrylmethane 98%	1000g	$375	2021-12-16	Buy
AHH	MT-07884	Diantipyrylmethane 97%	1000g	$375	2026-05-25	Buy
AHH	MT-07884	Diantipyrylmethane 97%	1000g	$375	2026-05-26	Buy
American Custom Chemicals Corporation	CHM0097509	4-[(1,5-DIMETHYL-3-OXO-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-4-YL)METHYL]-1,5-DIMETHYL-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-3-ONE 95.00%	2.5G	$796.77	2021-12-16	Buy
American Custom Chemicals Corporation	CHM0097509	4-[(1,5-DIMETHYL-3-OXO-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-4-YL)METHYL]-1,5-DIMETHYL-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-3-ONE 95.00%	5G	$912.29	2021-12-16	Buy
Chem-Impex	43603	4,4'-Diantipyrylmethane monohydrate [for Ti Analysis] 98-102%(Assaybytitration)	25G	$53.68	2026-05-19	Buy
Chem-Impex	43603	4,4'-Diantipyrylmethanemonohydrate[forTiAnalysis],98-102%(Assaybytitration) 98-102%(Assaybytitration)	25G	$42.75	2021-12-16	Buy
Crysdot	CD11315399	4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%	100g	$89	2026-05-27	Buy
Crysdot	CD11315399	4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%	100g	$89	2026-05-20	Buy
Crysdot	CD11315399	4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%	100g	$89	2021-12-16	Buy
Frontier Specialty Chemicals	JK289401	Diantipyrylmethane 98%	10g	$13	2021-12-16	Buy
Frontier Specialty Chemicals	JK289401	Diantipyrylmethane 98%	50g	$47	2021-12-16	Buy
Matrix Scientific	099039	4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) 95+%	25g	$258	2021-12-16	Buy

Next Last

Properties

Melting point :156 °C (dec.)(lit.)
Boiling point :514.17°C (rough estimate)
Density :1.1960 (rough estimate)
bulk density :430kg/m3
refractive index :1.6500 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :0.431g/l (experimental)
pka :1.26±0.65(Predicted)
form :powder to crystal
color :White
Water Solubility :439mg/L(20 ºC)
BRN :59702
Stability :Stable. Incompatible with strong oxidizing agents.
InChI :1S/C23H24N4O2.H2O/c1-16-20(22(28)26(24(16)3)18-11-7-5-8-12-18)15-21-17(2)25(4)27(23(21)29)19-13-9-6-10-14-19;/h5-14H,15H2,1-4H3;1H2
InChIKey :OSBQFBKEVMIGTJ-UHFFFAOYSA-N
SMILES :O.CN1N(C(=O)C(CC2=C(C)N(C)N(C2=O)c3ccccc3)=C1C)c4ccccc4
CAS DataBase Reference :1251-85-0(CAS DataBase Reference)
EPA Substance Registry System :3H-Pyrazol-3-one, 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl- (1251-85-0)

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	P-Codes
H302	Harmful if swallowed	Acute toxicity,oral	Category 4	Warning	P264, P270, P301+P312, P330, P501
H315	Causes skin irritation	Skin corrosion/irritation	Category 2	Warning	P264, P280, P302+P352, P321,P332+P313, P362
H319	Causes serious eye irritation	Serious eye damage/eye irritation	Category 2A	Warning	P264, P280, P305+P351+P338,P337+P313P
H335	May cause respiratory irritation	Specific target organ toxicity, single exposure;Respiratory tract irritation	Category 3	Warning

Precautionary statements:

P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

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Shaanxi Dideu Medichem Co. Ltd

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career henan chemical co

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Hebei Yanxi Chemical Co., Ltd.

Hefei TNJ Chemical Industry Co.,Ltd.

ANHUI WITOP BIOTECH CO., LTD

Finetech Industry Limited

Dayang Chem (Hangzhou) Co.,Ltd.

CD Chemical Group Limited

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DIANTIPYRYLMETHANE

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Description

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