成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook >> CAS DataBase List >>PICROLONIC ACID

PICROLONIC ACID

CAS No.
550-74-3
Chemical Name:
PICROLONIC ACID
Synonyms
NSC 5049;PICROLIC ACID;PicrolonicAci;PICROLONIC ACID;Picrolonic acid,93%;Picrolonic acid, AR;Picrolonic acid, 98+%;LABOTEST-BB LT00233107;4-nitro-3-methyl-p-nitrophenyl-5-pyrazolone;3-methyl-4-nitro-1-p-nitrophenyl-5-pyrazolone
CBNumber:
CB1405992
Molecular Formula:
C10H8N4O5
Molecular Weight:
264.19
MDL Number:
MFCD00003133
MOL File:
550-74-3.mol
MSDS File:
SDS
Last updated:2024-10-28 16:48:35

PICROLONIC ACID Properties

Melting point 119 °C
Boiling point 548.8±50.0 °C(Predicted)
Density 1.65±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,2-8°C
solubility 0.27 % in water at room temperature, readily soluble in alcohol.
form Yellow crystalline material. Melting point 116-120°C (with decomposition).
pka 2.44±0.40(Predicted)
Water Solubility Slightly soluble in water. Soluble in alcohol.
Merck 14,7412
BRN 623723
CAS DataBase Reference 550-74-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII AW40R29U5B
EPA Substance Registry System Picrolonic acid (550-74-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS07,GHS08
Signal word  Danger
Hazard statements  H315-H319-H335-H341
Precautionary statements  P201-P261-P280-P305+P351+P338-P405-P501a
Hazard Codes  Xn,Xi
Risk Statements  68-36/37/38-22-36/38-7
Safety Statements  37/39-26-36
RIDADR  3224
RTECS  UQ9510000
TSCA  Yes
HS Code  29339900
NFPA 704
0
1 0

PICROLONIC ACID price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation PRB0000029 PICROLONIC ACID 95.00% 550-74-3 5MG $501.95 2021-12-16 Buy
AHH MT-21465 Picrolonicacid 98% 550-74-3 100g $698 2021-12-16 Buy
Chemenu CM188661 3-Methyl-4-nitro-1-(4-nitrophenyl)-1H-pyrazol-5(4H)-one 95% 550-74-3 100g $487 2021-12-16 Buy
Product number Packaging Price Buy
PRB0000029 5MG $501.95 Buy
MT-21465 100g $698 Buy
CM188661 100g $487 Buy

PICROLONIC ACID Chemical Properties,Uses,Production

Chemical Properties

beige to ochre-yellow powder

Uses

As reagent for alkaloids, tryptophan, phenylalanine, and for the detection and estimation of calcium.

Uses

With calcium(II), lead(II) and thorium(IV) the reagent gives complexes which are practically insoluble in water. The high molecular weight crystalline complexes can be used to advantage for the accurate determination of minute amounts of various metals.
The reagent has also proved suitable for the spectrophotometric determination of calcium. Calcium picrolonate is transformed by bromine water in alkaline medium to a red, water-soluble complex. The absorption of this compound is constant for about two days and it also follows the Beer-Lambert Law.

Uses

Reagent for the isolation of amines as crystalline π-complexes.Picrolonic acid is an analytical reagent used for the estimation of calcium, magnesium, lead, strontium and thorium. It is also used for the analysis of alkaloids, tryptophan and phenylalanine.

Purification Methods

Crystallise picrolic acid from water or EtOH (solubility is 0.123% at 15o and 1.203% at 100o in H2O; and 1.107% at 0o and 11.68% at 81o in EtOH). It forms Ca, Cu Hg, Mg, Na, Sr, Pb and many other metal complexes [Maquestian et al Bull Soc Chim Belg 82 233 1973, Isaki et al. Chem Ber 74 1420 1941]. [Beilstein 24 H 51, 24 I 218, 24 II 25, 22 III/IV 105.]

PICROLONIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 113)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Mojin Biotechnology Co., Ltd
+86 13288715578 +8613288715578 sales@hbmojin.com China 12795 58
Hebei Yanxi Chemical Co., Ltd.
+8617531190177 peter@yan-xi.com China 5858 58
Hebei Weibang Biotechnology Co., Ltd
+8617732866630 bess@weibangbio.com China 18275 58
career henan chemical co
+86-0371-86658258 +8613203830695 sales@coreychem.com China 29886 58
Chongqing Chemdad Co., Ltd
+86-023-6139-8061 +86-86-13650506873 sales@chemdad.com China 39894 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34553 58
AFINE CHEMICALS LIMITED
+86-0571-85134551 sales@afinechem.com China 15361 58
Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739 info@dycnchem.com China 52849 58
Shaanxi Didu New Materials Co. Ltd
+86-89586680 +86-13289823923 1026@dideu.com China 8670 58
LEAP CHEM CO., LTD.
+86-852-30606658 market18@leapchem.com China 24727 58

View Lastest Price from PICROLONIC ACID manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
PICROLONIC ACID pictures 2024-10-28 PICROLONIC ACID
550-74-3
US $0.00-0.00 / KG 1KG 99% 500000kg Hebei Weibang Biotechnology Co., Ltd
PICROLONIC ACID pictures 2024-10-25 PICROLONIC ACID
550-74-3
US $70.00-10.00 / kg 1kg 0.99 10 tons Hebei Yanxi Chemical Co., Ltd.
PICROLONIC ACID pictures 2023-10-17 PICROLONIC ACID
550-74-3
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
  • PICROLONIC ACID pictures
  • PICROLONIC ACID
    550-74-3
  • US $0.00-0.00 / KG
  • 99%
  • Hebei Weibang Biotechnology Co., Ltd
  • PICROLONIC ACID pictures
  • PICROLONIC ACID
    550-74-3
  • US $70.00-10.00 / kg
  • 0.99
  • Hebei Yanxi Chemical Co., Ltd.
PICROLONIC ACID 2,4-dihydro-5-methyl-4-nitro-2-(4-nitrophenyl)-3h-pyrazol-3-on 2-Pyrazolin-5-one, 3-methyl-4-nitro-1-(p-nitrophenyl)- 3H-Pyrazol-3-one, 1,4-dihydro-5-methyl-4-nitro-2-(4-nitrophenyl)- 3-methyl-4-nitro-1-(p-nitrophenyl)-2-pyrazolin-5-on 3-Methyl-4-nitro-1-(p-nitrophenyl)-2-pyrazolin-5-one 5-Methyl-4-nitro-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one PICROLIC ACID Picrolonic acid, 98+% 3-methyl-4-nitro-1-(4-nitrophenyl)-2-pyrazolin-5-one 3-methyl-4-nitro-1-p-nitrophenyl-5-pyrazolone 2-(4-Nitrophenyl)-4-nitro-5-methyl-2,4-dihydro-3H-pyrazole-3-one 2,4-Dihydro-5-methyl-4-nitro-2-(4-nitrophenyl)-3H-pyrazol-3-one 5-Methyl-4-nitro-2-(p-nitrophenyl)-2,4-dihydro-3H-pyrazole-3-one 4-nitro-3-methyl-p-nitrophenyl-5-pyrazolone Picrolonic acid,93% 3-Methyl-4-nitro-1-(4-nitrophenyl)-1H-pyrazol-5(4H)-one NSC 5049 4-NITRO-3-METHYL-1-(P-NITROPHENYL)PYRAZOL-5-ONE LABOTEST-BB LT00233107 Picrolonic acid, AR 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-4-nitro-2-(4-nitrophenyl)- PicrolonicAci 550-74-3