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P26252

Sigma-Aldrich

Phenylhydrazine

97%

Synonym(s):

Hydrazinobenzene, Monophenylhydrazine

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5 G
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100 G
€47.80
500 G
€98.70

About This Item

Linear Formula:
C6H5NHNH2
CAS Number:
100-63-0
Molecular Weight:
108.14
Beilstein:
606080
EC Number:
202-873-5
MDL number:
MFCD00007573
UNSPSC Code:
12352100
PubChem Substance ID:
24898342
NACRES:
NA.22

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vapor density

4.3 (vs air)

Quality Level

200

vapor pressure

<0.1 mmHg ( 20 °C)

Assay

97%

autoignition temp.

345 °F

refractive index

n20/D 1.607 (lit.)

bp

238-241 °C (lit.)

mp

18-21 °C (lit.)

density

1.098 g/mL at 25 °C (lit.)

SMILES string

NNc1ccccc1

InChI

1S/C6H8N2/c7-8-6-4-2-1-3-5-6/h1-5,8H,7H2

InChI key

HKOOXMFOFWEVGF-UHFFFAOYSA-N

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Application

Phenylhydrazine can be used as a reactant in the synthesis of:
  • 4, 4′-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol)s by reacting with aryl aldehydes and acetoacetates in presence of N-bromo sulfonamide as a catalyst via one-pot pseudo-five-component condensation.[1]
  • Thiazolidinones by treating with mercaptoacetic acid and aldehydes or ketones.[2]
  • 5-[3,3,3-trifluoro-2-(phenylhydrazono)propyl]-1-phenyl-1H-pyrazole-3-carboxylic acid by reacting with 6-(trifluoromethyl)comanic acid.[3]

It can be also used as a precursor for the preparation of selective carboxymethylated products at N-1 and N-2 by reacting with dimethyl carbonate (DMC) in the presence of a Bronsted base and metal salts as a catalyst.[4]

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Carc. 1B - Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 1

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

192.2 °F - closed cup

Flash Point(C)

89 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM0998
BCCK6818
BCCJ0841
BCCG1074
BCCD9018

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Sigma-Aldrich

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Polyphosphoric acid reagent grade, 115% H3PO4 basis

Sigma-Aldrich

208213

Polyphosphoric acid

Erika Lattova et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 793(1), 167-179 (2003-07-26)
A well-known reaction of carbonyl compounds with phenylhydrazine has been applied to saccharides, providing increased sensitivity for mass spectrometric (MS) and ultraviolet (UV) detection during high-performance liquid chromatographic (HPLC) separations. After a simple derivatization procedure for 1 h at 70
Tandem cyclocondensation-Knoevenagel-Michael reaction of phenyl hydrazine, acetoacetate derivatives and arylaldehydes
Khazaei A, et al.
New. J. Chem., 38(11), 5287-5292 (2014)
Regioselective solvent-sensitive reactions of 6-(trifluoromethyl) comanic acid and its derivatives with phenylhydrazine
Usachev BI, et al.
Tetrahedron Letters, 50(31), 4446-4448 (2009)
Efficient solvent-free synthesis of thiazolidin-4-ones from phenylhydrazine and 2, 4-dinitrophenylhydrazine
Neuenfeldt PD, et al.
Tetrahedron Letters, 51(23), 3106-3108 (2010)
Reaction of the ambident electrophile dimethyl carbonate with the ambident nucleophile phenylhydrazine
Rosamilia AE, et al.
The Journal of Organic Chemistry, 73(4), 1559-1562 (2008)
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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