Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1(4H)-Naphthalenone,4-[[4-(dimethylamino)phenyl]imino]-
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1(4H)-Naphthalenone,4-[[4-(dimethylamino)phenyl]imino]-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

132-31-0

132-31-0 structure

132-31-0 structure

Name: 1(4H)-Naphthalenone,4-[[4-(dimethylamino)phenyl]imino]-
Chemical Name: indophenol blue
CAS Number: 132-31-0
Molecular Formula: C₁₈H₁₆N₂O
Molecular Weight: 276.33200
Catalog: Biochemical Biochemical reagent Biological dye
Create Date: 2018-08-24 18:36:48
Modify Date: 2025-08-21 21:02:24

Name	indophenol blue
Synonyms	Alpha-Naphthol Blue 4-[4-(dimethylamino)phenyl]iminonaphthalen-1-one N-(4-Dimethylaminophenyl)-1,4-naphthoquinoneimine Indophenol Blue MFCD00041739 EINECS 205-056-1 α-Naphthol Blue

Density	1.11 g/cm3
Boiling Point	427.7ºC at 760 mmHg
Melting Point	168-170ºC(lit.)
Molecular Formula	C₁₈H₁₆N₂O
Molecular Weight	276.33200
Flash Point	212.5ºC
Exact Mass	276.12600
PSA	32.67000
LogP	3.62590
Vapour Pressure	1.61E-07mmHg at 25°C
Index of Refraction	1.604

Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
HS Code	2925290090

Precursor 10
90-15-3 99-98-9 871876-73-2 2050-49-9
42344-05-8 604-44-4 138-89-6 130-15-4
50-99-7 7732-18-5
DownStream 2
83-72-7 130-15-4

HS Code	2925290090
Summary	2925290090 other imines and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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