CAS No.996-98-5,Ethanedioic acid,1,2-dihydrazide Suppliers

Detail of "996-98-5"

CAS Number:

996-98-5

Name:

Ethanedioic acid,1,2-dihydrazide

Superlist Name:

Oxalyl dihydrazide

Molecular Structure:

Formula:

C₂H₆N₄O₂

Molecular Weight:

118.09

Deleted CAS:

3011-40-3

Synonyms:

NSC 264;Bis-(1,4-diamine-1,4-diaza-2,3-dioxobutane);Oxalic acid, dihydrazide (6CI,7CI,8CI);Ethanedioicacid, dihydrazide (9CI);Oxaldihydrazide;Oxalhydrazide;Oxalic acid bishydrazide;Oxalic acid hydrazide;Oxalicdihydrazide;Oxaloyldihydrazine;Oxaloylhydrazine;Oxalyldihydrazide;Oxalyl hydrazide;

EINECS:

213-640-2

Density:

1.461 g/cm³

Melting Point:

242-244 °C (dec.)(lit.)

Appearance:

white to slightly yellow crystals or cryst. powder

Hazard Symbols:

Risk Codes:

36/37/38

Safety:

22-24/25 Details

Reference

The effect of some hydrazine derivatives on the corrosion of aluminum in hydrochloric acid solution: The effect of some hydrazine derivatives on the corrosion of aluminum in hydrochloric acid solution. Moussa, M. N. H.; Taha, F. I. M.; Gouda, M. M. A.; Singab, G. M. (Fac. Sci., Mansoura Univ., Mansoura, Egypt). Corros. Sci., 16(6), 379-85 (English) 1976. CODEN: CRRSAA.In this experiment, several chemicals are used like 1068-57-1 and 613-94-5 DOCUMENT TYPE: Journal CA Section: 56 (Nonferrous Metals and Alloys) The inhibitive effect on the corrosion of Al in HCl of Girard's T [123-46-6], Girard's P [1126-58-5], oxalic acid hydrazide [996-98-5], malonic acid hydrazide [3815-86-9], succinic acid hydrazide [4146-43-4], and acetophenone G-T (PhCOMe-I condensation product) was studied by thermometric and wt. loss measurements. Adsorption of the hydrazides leads to the formation of a monolayer on the Al surfaces. .

Colorimetric determination of certain corticosteroids: Colorimetric determination of certain corticosteroids. Rizk, M.; Zakhari, N.; Toubar, S.; Walash, M. I. (Fac. Pharm., Mansoura Univ., Mansoura, Egypt). Acta Pharm. Fenn., 93(3), 129-34 (English) 1984. CODEN: APHFDO. ISSN: 0356-3456. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) Section cross-reference(s): 2 A selective spectrophotometric method was devised for the microdetn. of cortisone (I) [53-06-5] cortisone acetate [50-04-4], hydrocortisone [50-23-7], hydrocortisone acetate [50-03-3], prednisone [53-03-2], prednisolone [50-24-8], betamethasone [378-44-9], dexamethasone [50-02-2] and triamcinolone acetonide [76-25-5] in pure form and in some pharmaceutical dosage forms. The method depends on the oxidative cleavage of the C-17-side chain by reaction with Na bismuthate in AcOH medium where an equiv. amt. of HCHO [50-00-0] is released. HCHO, then reacts with oxalyldihydrazide [996-98-5] in pH 7 buffer soln. in the presence of Cu(II) ions forming a stable blue colored complex that possesses an absorption max. at 610 nm with apparent molar absorptivities around 6000. Beer's law is obeyed within the range 5-60 mg corticosteroid with 99.66-100.22 accuracy. Statistical comparison of the present results with those of official methods shows excellent agreement and indicates no significant difference regarding precision.

Detail of "996-98-5"

Ethanedioic acid,1,2-dihydrazide

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Reference