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1021-03-0

Anilinium phenylamidosulfate, also known as sulfanilic acid anilide, is a chemical compound with the molecular formula C12H14N2O3S. It is formed by the reaction of aniline with sulfanilic acid, resulting in a salt that contains both an anilinium cation (C6H5NH3+) and a phenylamidosulfate anion (C6H4(NH2)SO3-). anilinium phenylamidosulfate is an organic salt and is used in various applications, including the synthesis of dyes and pharmaceuticals. It is characterized by its white crystalline appearance and is soluble in water. The compound's properties make it a valuable intermediate in the chemical industry, particularly in the production of azo dyes and certain types of drugs.

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  • 1021-03-0 Structure

  • Basic information

    1. Product Name: anilinium phenylamidosulfate
    2. Synonyms: anilinium phenylamidosulfate
    3. CAS NO:1021-03-0
    4. Molecular Formula:
    5. Molecular Weight: 266.321
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 1021-03-0.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: anilinium phenylamidosulfate(CAS DataBase Reference)
    10. NIST Chemistry Reference: anilinium phenylamidosulfate(1021-03-0)
    11. EPA Substance Registry System: anilinium phenylamidosulfate(1021-03-0)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 1021-03-0(Hazardous Substances Data)

1021-03-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1021-03-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,2 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1021-03:
(6*1)+(5*0)+(4*2)+(3*1)+(2*0)+(1*3)=20
20 % 10 = 0
So 1021-03-0 is a valid CAS Registry Number.

1021-03-0Downstream Products

1021-03-0Relevant articles and documents

Insertion of Sulfur Trioxide into the N-Si bond of Anilinotrimethylsilane. An Improved Method for the Preparation of Free Phenylamidosulfuric Acid

Kanetani, Fujio,Okada, Eiji,Negoro, Kenji

, p. 2517 - 2520 (1986)

The reaction between anilinotrimethylsilane (1) and a variety of sulfonating agents has been studied.With SO3, 5, or a dioxane-sulfur trioxide complex a sulfur trioxide molecule was inserted selectively into the N-Si bond of 1 to yield trimethylsilyl phenylamidosulfate (2), which on treatment with acetic acid, trifluoroacetic acid, or methanol gave free phenylamidosulfuric acid (3).The reaction of 1 with ClSO3H afforded 3 directly, but the product was contaminated with slight amounts of anilinium hydrogensulfate and anilinium chloride.The reaction of 1 with 10 yielded a mixture containing dianilinium (4-sulfonatophenylamido)sulfate, 4-aminobenzenesulfonic acid, and ethyl phenylamidosulfate as major products (after desilylation).The reaction of 1 with 5 has been found to provide an improved method for preparing 3.

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