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1-PHENYLSEMICARBAZIDE

1-PHENYLSEMICARBAZIDE structure

CAS No.: 103-03-7

Chemical Name:: 1-PHENYLSEMICARBAZIDE

Synonyms: Phenicarbazide;2-phenylhydrazinecarboxamide;Febrimin;KRYOGENIN;Carbaphen;CRYOGENINE;Phenygenine;Phenicarbazid;Fenylsemikarbazid;Phenylsemicarbazide

CBNumber:: CB9145791

Molecular Formula:: C7H9N3O

Molecular Weight:: 151.17

MDL Number:: MFCD00007942

MOL File:: 103-03-7.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 04:28:56

Product description	Number	Pack Size	Price
1-Phenylsemicarbazide 99%	245909	10g	$45.5
1-Phenylsemicarbazide >98.0%(HPLC)(T)	P0227	25g	$34
1-Phenylsemicarbazide	AAA10303	100g	$250
1-Phenylsemicarbazide ≥97%	CS-0325443	100g	$147
1-Phenylsemicarbazide ≥97%	CS-0325443	500g	$483

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1-PHENYLSEMICARBAZIDE Properties

Melting point	171-174 °C (lit.)
Boiling point	273.17°C (rough estimate)
Density	1.2100 (rough estimate)
refractive index	1.5860 (estimate)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	acetone: very soluble(lit.)
form	powder to crystal
pka	11.16±0.43(Predicted)
color	White to Light yellow
BRN	743311
InChI	1S/C7H9N3O/c8-7(11)10-9-6-4-2-1-3-5-6/h1-5,9H,(H3,8,10,11)
InChIKey	AVKHCKXGKPAGEI-UHFFFAOYSA-N
SMILES	NC(=O)NNc1ccccc1
CAS DataBase Reference	103-03-7(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	1LR2578324
IARC	3 (Vol. 12, Sup 7) 1987
EPA Substance Registry System	Phenicarbazide (103-03-7)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07,GHS08

Signal word

Warning

Hazard statements

H315-H319-H335-H351

Precautionary statements

P201-P261-P280-P305+P351+P338-P405-P501a

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

Safety Statements

45-36/37/39-26

WGK Germany

RTECS

FD0575000

TSCA

TSCA listed

HS Code

29280090

Storage Class

11 - Combustible Solids

NFPA 704

	1
2		0

1-PHENYLSEMICARBAZIDE price More Price(20)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	245909	1-Phenylsemicarbazide 99%	103-03-7	10g	$45.5	2026-04-30	Buy
TCI Chemical	P0227	1-Phenylsemicarbazide >98.0%(HPLC)(T)	103-03-7	25g	$34	2026-04-30	Buy
Biosynth	AAA10303	1-Phenylsemicarbazide	103-03-7	100g	$250	2026-06-04	Buy
ChemScene	CS-0325443	1-Phenylsemicarbazide ≥97%	103-03-7	100g	$147	2026-06-04	Buy
ChemScene	CS-0325443	1-Phenylsemicarbazide ≥97%	103-03-7	500g	$483	2026-06-04	Buy

Product number	Packaging	Price	Buy
245909	10g	$45.5	Buy
P0227	25g	$34	Buy
AAA10303	100g	$250	Buy
CS-0325443	100g	$147	Buy
CS-0325443	500g	$483	Buy

1-PHENYLSEMICARBAZIDE Chemical Properties,Uses,Production

Uses

1-Phenylsemicarbazide was used in the synthesis of a series of alkyl(aryl/heteroaryl) substituted 3-trifluoromethyl-1H-1-phenylpyrazoles and alkyl 3-carboxylate analogs by the cyclocondensation reactions with 4-alkoxy-1,1,1-trihaloalk-3-en-2-ones.

Definition

ChEBI: Phenicarbazide is a member of phenylhydrazines.

brand name

Antipyretic dellepsoids d26.

World Health Organization (WHO)

Phenicarbazide, which has analgesic and antipyretic activity, was introduced in the 1970s. It has been withdrawn in at least one country on grounds of its adverse effect profile and it appears to have fallen into disuse in others.

Purification Methods

Crystallise it from water and dry it in a vacuum over KOH. [Beilstein 15 H 287, 15 II 106, 15 III 184, 15 IV 180.]

1-PHENYLSEMICARBAZIDE synthesis

Synthesis of 1-PHENYLSEMICARBAZIDE from PHENYLURETHANE and 4-Fluorobenzhydrazide

1-PHENYLSEMICARBAZIDE Preparation Products And Raw materials

Raw materials

Urea NITROSOPHENYLUREA Hydrazinecarboxamide, 2-(1-methylethylidene)-1-phenyl- ethyl cyanate 1,5-Diphenylcarbazide

3,5-DIMETHYLPYRAZOLE-1-CARBOXAMIDE 4-Fluorobenzhydrazide Urethane Phenylhydrazine hydrochloride PHENYLURETHANE

1-Methyl-1-nitrosourea Phenylhydrazine

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Preparation Products

3-Hydroxy-1-phenyl-1,2,4-triazole Triazophos

1-PHENYLSEMICARBAZIDE Suppliers

Global( 138)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325 +8613131129325	sales1@chuanghaibio.com	China	5229	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29792	58
Shaanxi Dideu Medichem Co. Ltd	+8617392709771	1097@dideu.com	China	3993	58
ANHUI WITOP BIOTECH CO., LTD	+8615255079626	eric@witopchemical.com	China	23541	58
BOC Sciences	16314854226; +16314854226	inquiry@bocsci.com	United States	19853	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52705	58
PT CHEM GROUP LIMITED	+86-85511178;	peter68@ptchemgroup.com	China	35425	58
ZHEJIANG JIUZHOU CHEM CO., LTD	+86-0576225566889 +86-13454675544	admin@jiuzhou-chem.com；jamie@jiuzhou-chem.com；alice@jiuzhou-chem.com	China	12272	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49967	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	58
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Shaanxi Dideu Medichem Co. Ltd	58
ANHUI WITOP BIOTECH CO., LTD	58
BOC Sciences	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
PT CHEM GROUP LIMITED	58
ZHEJIANG JIUZHOU CHEM CO., LTD	58
GIHI CHEMICALS CO.,LIMITED	58

View Lastest Price from 1-PHENYLSEMICARBAZIDE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-05-28	1-PHENYLSEMICARBAZIDE 103-03-7	$9.00	1KG	99.8%	100tons	Hebei Chuanghai Biotechnology Co,.LTD
2025-12-24	1-PHENYLSEMICARBAZIDE 103-03-7		1KG	99.0%	1000 tons	Shaanxi Dideu Medichem Co. Ltd
2020-01-10	1-PHENYLSEMICARBAZIDE 103-03-7	$9.80	1g	≥99%	100kg	Career Henan Chemical Co

1-PHENYLSEMICARBAZIDE
103-03-7
$9.00
99.8%
Hebei Chuanghai Biotechnology Co,.LTD

1-PHENYLSEMICARBAZIDE
103-03-7
$0.10
99.0%
Shaanxi Dideu Medichem Co. Ltd

1-PHENYLSEMICARBAZIDE
103-03-7
$9.80
≥99%
Career Henan Chemical Co

1-PHENYLSEMICARBAZIDE Spectrum

1-PHENYLSEMICARBAZIDE(103-03-7)MS 1-PHENYLSEMICARBAZIDE(103-03-7)¹³CNMR 1-PHENYLSEMICARBAZIDE(103-03-7)IR1 1-PHENYLSEMICARBAZIDE(103-03-7)IR2

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