BENZOYL LEUCO METHYLENE BLUE
- CAS No.
- 1249-97-4
- Chemical Name:
- BENZOYL LEUCO METHYLENE BLUE
- Synonyms
- BLMB;ai3-17179;Methylene blue leucobenzoy;BENZOYL LEUCO METHYLENE BLUE;Benzoyl Leuco Methylene Blue >Benzoyl Leuco Methylene Blue(BLMB);Benzoyl Leuco Methylene Blue, ≥ 95.0%;Benzoyl Leuco Methylene Blue (Standard);3,7-bis(Dimethylamino)-10-benzoylphenothiazine;10-benzoyl-3,7-bis(dimethylamino)phenothiazine
- CBNumber:
- CB4198101
- Molecular Formula:
- C23H23N3OS
- Molecular Weight:
- 389.51
- MDL Number:
- MFCD00059153
- MOL File:
- 1249-97-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Benzoyl Leuco Methylene Blue >96.0%(HPLC)(T) | B0207 | 1g | $33 |
| Benzoyl Leuco Methylene Blue >96.0%(HPLC)(T) | B0207 | 25g | $150 |
| Methylene blue leucobenzoy ≥98% | CS-0062712 | 500g | $173 |
| Methylene blue leucobenzoy ≥98% | CS-0062712 | 500g | $173 |
| Benzoyl leuco methylene blue ≥96%(HPLC) | 47614 | 1G | $40.8 |
| Melting point | 198°C |
|---|---|
| Boiling point | 589.3±50.0 °C(Predicted) |
| Density | 1.258±0.06 g/cm3(Predicted) |
| solubility | very faint turbidity in hot Toluene |
| form | powder to crystal |
| pka | 5.80±0.20(Predicted) |
| color | White to Light yellow to Green |
| EPA Substance Registry System | 10H-Phenothiazine-3,7-diamine, 10-benzoyl-N,N,N',N'-tetramethyl- (1249-97-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| RTECS | SN5449000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29349990 | |||||||||
| Toxicity | mouse,LD,intraperitoneal,> 500mg/kg (500mg/kg),"Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 4, Pg. 47, 1952. | |||||||||
| NFPA 704 |
|
BENZOYL LEUCO METHYLENE BLUE price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | B0207 | Benzoyl Leuco Methylene Blue >96.0%(HPLC)(T) | 1249-97-4 | 1g | $33 | 2026-04-30 | Buy |
| TCI Chemical | B0207 | Benzoyl Leuco Methylene Blue >96.0%(HPLC)(T) | 1249-97-4 | 25g | $150 | 2026-04-30 | Buy |
| ChemScene | CS-0062712 | Methylene blue leucobenzoy ≥98% | 1249-97-4 | 500g | $173 | 2026-06-04 | Buy |
| ChemScene | CS-0062712 | Methylene blue leucobenzoy ≥98% | 1249-97-4 | 500g | $173 | 2026-06-04 | Buy |
| Chem-Impex | 47614 | Benzoyl leuco methylene blue ≥96%(HPLC) | 1249-97-4 | 1G | $40.8 | 2026-05-19 | Buy |
BENZOYL LEUCO METHYLENE BLUE Chemical Properties,Uses,Production
Uses
10-Benzoylleucomethylene Blue was used as a color-forming agent in colorless copying paper. It is also recommended for documents to make them safe against forgery.
Preparation
10-Benzoylleucomethylene Blue[1249-97-4] is obtained by reduction of Methylene Blue with hydrosulfite in aqueous alkaline medium, followed by benzoylation and then extraction of the crude product with toluene.
Mechanism of action
The mechanism of color-forming decomposition of N-benzoylleucomethylene blue during the copying process has been studied; the reaction is induced by photons and proceeds via free radicals.
BENZOYL LEUCO METHYLENE BLUE Preparation Products And Raw materials
Raw materials
Preparation Products
BENZOYL LEUCO METHYLENE BLUE Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +8617392709771 | 1097@dideu.com | China | 3992 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20122 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
| BOC Sciences | +1-631-485-4226 | inquiry@bocsci.com | United States | 19936 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29792 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 9543 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23541 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52704 | 58 |
| Alfa Chemistry | +1-5166625404; | Info@alfa-chemistry.com | United States | 20405 | 58 |
View Lastest Price from BENZOYL LEUCO METHYLENE BLUE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2025-12-24 | Benzoyl Leuco Methylene Blue
1249-97-4
|
1KG | 99.0% | 10000KG | Shaanxi Dideu Medichem Co. Ltd | ||
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2025-09-25 | BENZOYL LEUCO METHYLENE BLUE
1249-97-4
|
$1.30-32.00 | 1kg | 99% | Henan Fengda Chemical Co., Ltd | ||
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2025-04-15 | Benzoyl Leuco Methylene Blue
1249-97-4
|
$120.00 | 1kg | 99% | 20ton | Hebei Zhuanglai Chemical Trading Co.,Ltd |
-

- Benzoyl Leuco Methylene Blue
1249-97-4
- 99.0%
- Shaanxi Dideu Medichem Co. Ltd
-

- BENZOYL LEUCO METHYLENE BLUE
1249-97-4
- $1.30-32.00
- 99%
- Henan Fengda Chemical Co., Ltd
-

- Benzoyl Leuco Methylene Blue
1249-97-4
- $120.00
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd





