Direct Black 19

Modify Date: 2025-08-24 14:57:59

Direct Black 19 structure	Common Name	Direct Black 19
	CAS Number	6428-31-5	Molecular Weight	839.771
	Density	1.727g/cm3	Boiling Point	N/A
	Molecular Formula	C₃₄H₂₇N₁₃Na₂O₇S₂	Melting Point	N/A
	MSDS	N/A	Flash Point	N/A

Name	Direct Black 19
Synonym	More Synonyms

Density	1.727g/cm3
Molecular Formula	C₃₄H₂₇N₁₃Na₂O₇S₂
Molecular Weight	839.771
Exact Mass	839.139343
PSA	380.37000
LogP	12.99380
Index of Refraction	1.817
InChIKey	SLRXMXRIDJLFLC-UHFFFAOYSA-N
SMILES	Nc1ccc(N=Nc2ccc(N=Nc3c(S(=O)(=O)O)cc4cc(S(=O)(=O)O)c(N=Nc5ccc(N=Nc6ccc(N)cc6N)cc5)c(O)c4c3N)cc2)c(N)c1.[Na]

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GD0175560

CHEMICAL NAME :: C.I. Direct Black 19, disodium salt

CAS REGISTRY NUMBER :: 6428-31-5

LAST UPDATED :: 199710

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C34-H29-N13-O7-S2.2Na

MOLECULAR WEIGHT :: 841.86

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :: Body fluid assay

TEST SYSTEM :: Rodent - rat Bacteria - Salmonella typhimurium

DOSE/DURATION :: 500 mg/kg

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 156,131,1985 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M4445 No. of Facilities: 66 (estimated) No. of Industries: 1 No. of Occupations: 5 No. of Employees: 780 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M4445 No. of Facilities: 45 (estimated) No. of Industries: 3 No. of Occupations: 5 No. of Employees: 1157 (estimated) No. of Female Employees: 124 (estimated)

Hazard Codes	Xi
Risk Phrases	R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Phrases	S26-S37/39
WGK Germany	3
HS Code	3204140000

HS Code	3204140000

Vicorect Black FB.

EINECS 229-208-1

RIFAZOLBLACKGR

Condires Black AN

Benzo Fast Black G

2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis[(E)-2-[4-[(E)-2-(2,4-diaminophenyl)diazenyl]phenyl]diazenyl]-5-hydroxy-, sodium salt (1:2)

Atul Direct Black VG

Black G

Sumilight Black G

Disodium 4-amino-3,6-bis[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-5-hydroxy-2,7-naphthalenedisulfonate

Kayarus Black G

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Direct Black 19
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Direct Black 19
Price: ￥108.0/100g ￥298.0/500g
Purity: 98.0%
Delivery: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Direct Black 19
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Get all suppliers and price by the below link:

Direct Black 19 suppliers

Direct Black 19 price

Direct Black 19

Names

Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Customs

Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.