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CAS 1787-61-7 Eriochrome Black T

China Hunan Yunbang Biotech Inc. certification
China Hunan Yunbang Biotech Inc. certification
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CAS 1787-61-7 Eriochrome Black T

CAS 1787-61-7 Eriochrome Black T
CAS 1787-61-7 Eriochrome Black T CAS 1787-61-7 Eriochrome Black T

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Product Details:
Place of Origin: China
Brand Name: YunbangPharm
Certification: ISO9001
Model Number: YB169
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: 1kg/Bottle, 5-25kg/Drum
Delivery Time: 5-8 working days
Payment Terms: L/C, D/A, D/P, T/T, Western Union
Supply Ability: 10Ton/Month

CAS 1787-61-7 Eriochrome Black T

Product Name: Eriochrome Black T Cas No: 1787-61-7
EINECS NO: 217-250-3 Molecular Formula: C20H12N3NaO7S
Colour: Brownish-black To Black Form: Powder
Odor: Odorless PH: 3.7 (10g/l, H2O, 20℃)
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CAS 1787-61-7


CAS 1787-61-7 Eriochrome Black T

CAS 1787-61-7 Eriochrome Black T


Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.


R&D strength is the company's core competitiveness.Yunbangpharm has maintains a good cooperation relationship with many Universities and Research institutes locally, which can quickly transform R&D results into industrial production.

Our goal : To achieve the integrated upgrade of Pharmaceutical intermediates, raw materials and high-end chemical products, adhere to "serving pharmaceutical companies, creating our brands" to provide customers with high-quality and low-cost pharmaceutical and chemical products, realizing Win-win cooperation and common development.

1:Can I get some samples before bulk order?
A: Most products provide free samples, but the shipping cost be paid by customers.
2: What's your MOQ?
A: We can have a discussion.
3: Which kind of payment terms do you accept?
A: PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union,D/P, ETC.
4.How to place an order?
A: You can contact me through Trademanager, WhatsApp, Email and other contact methods, tell me the product and quantity you need, and then we will give you a quote.
5:How about your delivery time?
A: Generally, it will take 3 to 5 days after receiving your advance payment.
6:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.



1. 90days quality guarantee for exchange.

2. For each batch order extracts, we will attach a factory Inspection Report with the goods delivery , including the BatchNo/ Date/ Test index ects; also will keep the archived extracts to ensure received by customers are the same each time.

3. Our team of experienced professionals are available online 24 hours a day to answer any questions and provide guidance on product usage and maintenance.


Product Name: Eriochrome Black T
Synonyms: 1-naphthalenesulfonicacid,3-hydroxy-4-((1-hydroxy-2-naphthalenyl)azo)-7-nitro;1-naphthalenesulfonicacid,3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro;1-Naphthalenesulfonicacid,3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-,monosodiumsalt;abcolchromeblacktn;abcolchromenavyrzn;acidchromeblacket;chromogeneblackt160;czernkwasowo-chromowaetn
CAS: 1787-61-7
MF: C20H12N3NaO7S
MW: 461.38
EINECS: 217-250-3
Eriochrome Black T Structure
density 1.109 g/mL at 25 °C
Fp 185 °C
storage temp. room temp
solubility 50g/l
form Powder/Solid
pka pK1:6.3;pK2:11.55 (25°C)
Colour Index 14645
Specific Gravity 1.109
color Brownish-black to black
PH 3.7 (10g/l, H2O, 20℃)
Odor Odorless
Water Solubility 50 g/L (20 ºC)
Merck 14,3667
BRN 4121162
Stability: Stable. Incompatible with strong oxidizing agents, strong reducing agents.
CAS DataBase Reference 1787-61-7(CAS DataBase Reference)
EPA Substance Registry System C.I. Mordant Black 11, monosodium salt (1787-61-7)
Hazard Codes Xi
Risk Statements 36-36/37/38-36/38
Safety Statements 39-26-37/39-24/25
WGK Germany 2
RTECS QK2197000
HazardClass 6.1
PackingGroup III
HS Code 32041900
Toxicity LD50 oral in rat: 17590mg/kg
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Contact Details
Hunan Yunbang Biotech Inc.

Contact Person: Maggie Ma

Tel: +0086 188 7414 9531

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