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3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE

3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE structure

CAS No.: 94-78-0

Chemical Name:: 3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE

Synonyms: Proma;Prozil;W 1655;Promazil;Sanopron;Gastracid;Promactil;Pyrazofen;Plegomazin;Gastrotest

CBNumber:: CB7770306

Molecular Formula:: C11H11N5

Molecular Weight:: 213.24

MDL Number:: MFCD00091843

MOL File:: 94-78-0.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-20 15:44:18

Product description	Number	Pack Size	Price
2,6-DIAMINO-3-(PHENYLAZO)PYRIDINE Aldrich^CPR	S802549	1 unit	$197
2,6-DIAMINO-3-(PHENYLAZO)PYRIDINE Aldrich	S802549	50mg	$179
Phenazopyridine	019394	100mg	$446
Phenazopyridine	P313751	1g	$1295
3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE 95.00%	CHM0009760	1G	$1871.1
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3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE Properties

Melting point	136-137°
Boiling point	343.23°C (rough estimate)
Density	1.2597 (rough estimate)
refractive index	1.6880 (estimate)
storage temp.	Amber Vial, -20°C Freezer, Under inert atmosphere
solubility	DMSO (Slightly), Methanol (Slightly)
pka	pKa 5.15(H2O,t =25) (Uncertain)
form	Solid
color	Red crystals
Water Solubility	904.20g/L(25 ºC)
Henry's Law Constant	3.0×10⁹ mol/(m³Pa) at 25℃, HSDB (2015)
BCS Class	2
Stability	Light Sensitive
InChIKey	QPFYXYFORQJZEC-FOCLMDBBSA-N
EWG's Food Scores	1
FDA UNII	K2J09EMJ52
ATC code	G04BX06
Proposition 65 List	Phenazopyridine
EPA Substance Registry System	Phenazopyridine (94-78-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H319-H302
Precautionary statements	P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501
Hazardous Substances Data	94-78-0(Hazardous Substances Data)
Toxicity	LD50 ipr-rat: 560 mg/kg JPETAB 51,200,34

3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE price More Price(6)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	S802549	2,6-DIAMINO-3-(PHENYLAZO)PYRIDINE Aldrich^CPR	94-78-0	1 unit	$197	2026-04-30	Buy
Sigma-Aldrich	S802549	2,6-DIAMINO-3-(PHENYLAZO)PYRIDINE Aldrich	94-78-0	50mg	$179	2024-03-01	Buy
Usbiological	019394	Phenazopyridine	94-78-0	100mg	$446	2021-12-16	Buy
TRC	P313751	Phenazopyridine	94-78-0	1g	$1295	2021-12-16	Buy
American Custom Chemicals Corporation	CHM0009760	3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE 95.00%	94-78-0	1G	$1871.1	2021-12-16	Buy

Product number	Packaging	Price	Buy
S802549	1 unit	$197	Buy
S802549	50mg	$179	Buy
019394	100mg	$446	Buy
P313751	1g	$1295	Buy
CHM0009760	1G	$1871.1	Buy

3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE Chemical Properties,Uses,Production

Chemical Properties

Phenazopyridine is a red crystalline compound. Slightly soluble in water.

Originator

Phenazopyridine ,AroKor Holdings Inc.

Uses

An azo dye used in treatment of urinary tract infections. 3-(Phenylazo)-2,6-pyridinediamine is used as an analgesic (urinary tract).

Uses

An azo dye used in treatment of urinary tract infections. Used as an analgesic (urinary tract).

Definition

ChEBI: A diaminopyridine that is 2,6-diaminopyridine substituted at position 3 by a phenylazo group. A local anesthetic that has topical analgesic effect on mucosa lining of the urinary tract. Its use is limited by problems with toxicity (primarily blood disorder ) and potential carcinogenicity.

Manufacturing Process

Phenyldiazene chloride reacted with 2,6-diaminopyridine and in the result 2,6diamino-3-(phenylazo)pyridine was obtained.
In practice it is usually used as monohydrochloride.

brand name

Pyridium (Parke-Davis);Azo gantrisin;Azodine;Phenazo;Pyridiate;Pyronium;Sedural.

Therapeutic Function

Urinary analgesic, Antiseptic, Diagnostic aid

World Health Organization (WHO)

Phenazopyridine, an azo dye, was introduced in the 1950s as a urinary antiseptic. It was withdrawn in Greece in 1984 on grounds that it has a carcinogenic potential but it remains available in other countries, most frequently as a constituent of combination products.

Safety Profile

Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental neoplastigenic data. Used as a local anesthetic. When heated to decomposition it emits toxic fumes of NOx.

Shipping

UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3249 Medicine, solid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE Preparation Products And Raw materials

Raw materials

phenyldiazene 2,6-Diaminopyridine

Preparation Products

3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE Suppliers

Global( 52)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Apeloa production Co.,Limited	+8619933239880	admin@apcl.com.cn	China	861	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21588	55
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29794	58
Shaanxi Dideu Medichem Co. Ltd	+86-29-87569262 +86-15003564040	1056@dideu.com	China	3980	58
AFINE CHEMICALS LIMITED	+86-0571-85134551	sales@afinechem.com	China	15082	58
TargetMol Chemicals Inc.	+1-781-999-5354;	support@targetmol.com	United States	39040	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	+8618950047208	ellena@amitychem.com	China	43414	58
DAYANG CHEM (HANGZHOU) CO.,LTD	+86-88938639 +86-17705817739	info@dycnchem.com	China	53802	58
Chemwill Asia Co.,Ltd.	86-21-51086038	chemwill_asia@126.com	CHINA	23912	58
J & K SCIENTIFIC LTD.	18210857532; 18210857532	jkinfo@jkchemical.com	China	96815	76

Supplier	Advantage
Apeloa production Co.,Limited	58
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
Shaanxi Dideu Medichem Co. Ltd	58
AFINE CHEMICALS LIMITED	58
TargetMol Chemicals Inc.	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	58
DAYANG CHEM (HANGZHOU) CO.,LTD	58
Chemwill Asia Co.,Ltd.	58
J & K SCIENTIFIC LTD.	76

View Lastest Price from 3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-04-22	Phenazopyridine 94-78-0	US $56.00-93.00 / mg		99.98%	10g	TargetMol Chemicals Inc.
2026-02-02	Phenazopyridine 94-78-0	US $1.00-1.00 / KG	1g	99%	50tons	Shaanxi Dideu Medichem Co. Ltd
2025-02-13	3-(Phenylazo)-2,6-pyridinediamine 94-78-0	US $1.00 / g	1g	0.98	1000	Apeloa production Co.,Limited

Phenazopyridine
94-78-0
US $56.00-93.00 / mg
99.98%
TargetMol Chemicals Inc.

Phenazopyridine
94-78-0
US $1.00-1.00 / KG
99%
Shaanxi Dideu Medichem Co. Ltd

3-(Phenylazo)-2,6-pyridinediamine
94-78-0
US $1.00 / g
0.98
Apeloa production Co.,Limited

3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE Spectrum

3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE(94-78-0)¹HNMR

94-78-0(3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE)Related Search:

Astemizole Phenazopyridine hydrochloride 3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE 2,6-Diaminopyridine PYRIDINE-2,3,6-TRIAMINE

2,6-diamino-3-(phenylazo)-pyridin 2,6-Diamino-3-(phenylazo)pyridine 2,6-diamino-3-phenylazopyridine 3-(phenylazo)-6-pyridinediamine 3-[(E)-Phenyldiazenyl]-2,6-pyridinediamine Gastracid Gastrotest Phenazopryidine Phenylazo tablet phenylazotablet Plegomazin Proma Promactil Promazil Prozil Pyrazofen Pyridine, 2,6-diamino-3-(phenylazo)- Sanopron W 1655 PHENAZOPYRIDINE 3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE (E)-3-(phenyldiazenyl)pyridine-2,6-diaMine 2,6-Pyridinediamine,3-(2-phenyldiazenyl)- 2,6-Pyridinediamine,3-(phenylazo)- (9CI) 3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE, USP24 3-(Phenylazo)pyridine-2,6-diamine (6-amino-3-phenylazo-2-pyridyl)amine 3-phenyldiazenylpyridine-2,6-diamine Phenazopyridine See P313750 3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE USP/EP/BP High purity CAS 94-78-0 3-(PHENYLAZO)-2,6-PYRIDINEDIAMINE in stock 94-78-0 Aromatics Bases & Related Reagents Heterocycles Intermediates & Fine Chemicals Nucleotides Pharmaceuticals