CAS No.420-04-2,Cyanamide Suppliers

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Basic Information

Molecular Structure:
CAS No.:	420-04-2
Name:	Cyanamide
Article Data:	297

Formula:	CH₂N₂
Molecular Weight:	42.0403
Synonyms:	Alzogur;Amidocyanogen;Carbamonitrile;Carbimide;Cyanoamine;Cyanogen nitride;Cyanogenamide;Deurbraak;Dormex;Hydrogen cyanamide;N-Cyanoamine;NSC 24133;TsAKS;
EINECS:	206-992-3
Density:	0.998 g/cm³
Melting Point:	45-46 °C(lit.)
Boiling Point:	258.5 °C at 760 mmHg
Flash Point:	1.2 °C
Solubility:	775 g/L in water
Appearance:	white crystalline solid
Hazard Symbols:
Risk Codes:	21-25-36/38-43
Safety:	3-22-36/37-45
Transport Information:	UN 2811 6.1/PG 3
PSA:	49.81000
LogP:	0.12648

Synthetic route

: 17356-08-0
thiourea

: 420-04-2
CYANAMID

Conditions

Conditions	Yield
With copper(ll) sulfate pentahydrate; triethylamine In dimethyl sulfoxide at 20℃; for 1h; Reagent/catalyst; Solvent;	100%
With mercury(II) oxide
With lead(II) hydroxide on calcium carbonate

: 55986-20-4
N-(p-tolylsulfonyl)dibenzylselenimide

: 17356-08-0
thiourea

A: 420-04-2
CYANAMID

B: 1842-38-2
dibenzyl selenide

C: 70-55-3
toluene-4-sulfonamide

Conditions

Conditions	Yield
In methanol for 0.5h; Mechanism; Ambient temperature;	A 72% B 98% C 98%

...Expand

: 71150-48-6
N-phenylsulfonyl-Te,Te-diphenyltellurimide

A: 98-10-2
benzenesulfonamide

B: 420-04-2
CYANAMID

C: 1202-36-4
diphenyl telluride

Conditions

Conditions	Yield
With thiourea In acetonitrile Ambient temperature;	A 95% B 74% C 97%

...Expand

: 62486-35-5
Te,Te-di(p-methoxyphenyl)-N-(p-tolylsulfonyl)tellurimide

A: 420-04-2
CYANAMID

B: 4456-34-2
bis(4-methoxyphenyl)telluride

C: 70-55-3
toluene-4-sulfonamide

Conditions

Conditions	Yield
With thiourea In acetonitrile Ambient temperature;	A 75% B 95% C 90%

...Expand

: 156-62-7
calcium cyanamide

: 420-04-2
CYANAMID

Conditions

Conditions	Yield
With carbon dioxide 40°C;	92%
With sulfuric acid
With nitric acid

: 71150-49-7, 140925-80-0, 140925-81-1
N-(trichloroacetyl)-di-(p-methoxyphenyl)tellurimide monohydrate

A: 420-04-2
CYANAMID

B: 594-65-0
trichloroacetamide

C: 4456-34-2
bis(4-methoxyphenyl)telluride

Conditions

Conditions	Yield
With thiourea In acetonitrile Ambient temperature;	A 72% B 90% C 92%

...Expand

: 7732-18-5
water

: 156-62-7
calcium cyanamide

: 420-04-2
CYANAMID

Conditions

Conditions	Yield
With carbon dioxide In methanol 40°C, 3 h; filtration, evapn. of solvent at 11 Torr;	90%
With carbon dioxide In not given byproducts: CaCO3; leading of CO2, filtration of CaCO3, acidifying with acetic acid to pH=6; evapn. at 40°C and 10-20 Torr, cooling down to ambient temp., after concentration cooling down to 5-10°C, drying in vac.; dissolving in ether, filtration, evapn. of ether or pptn. with benzene, distillation at 85-87°C and 0.5 Torr;
With carbon dioxide byproducts: CaCO3; 30-32°C;

: 113-00-8
guanidine nitrate

: 420-04-2
CYANAMID

Conditions

Conditions	Yield
With dinitrogen trioxide; sulfuric acid In not given cold soln. of guanidine in dild. H2SO4;	70%
With H2SO4; N2O3 In not given cold soln. of guanidine in dild. H2SO4;	70%
With cis-nitrous acid

: 55051-36-0
N-(diisopropoxyphosphinothioyl)thiourea

: 786-50-5
10-chloroacetylphenothiazine

A: 92-84-2
10H-phenothiazine

B: 420-04-2
CYANAMID

C: 126588-17-8
[4-Oxo-thiazolidin-(2Z)-ylidene]-thiophosphoramidic acid O,O'-diisopropyl ester

D: 126588-21-4
10-<<(diisopropoxyphosphinothioyl)thio>acetyl>phenothiazine

Conditions

Conditions	Yield
With triethylamine In benzene 1) 80 deg C, 1.5 h, 2) 3 d room temp.;	A n/a B n/a C n/a D 53%

...Expand

: 75-75-2
methanesulfonic acid

: 59579-33-8
bis(trimethylgermyl)carbodiimide

A: 420-04-2
CYANAMID

B: 79463-94-8
trimethylgermyl methylsulfonate

Conditions

Conditions	Yield
In neat (no solvent) Ge-compound distilled into a vessel held at -196°C containing organic compound, mixture reacted at room temp. for 10 min; filtered in N2, volatiles removed in vac.;	A n/a B 50%

...Expand

Raw Materials

78286-57-4

69-65-8

60-29-7

288-88-0

786-50-5

506-68-3

Downstream Products

64-18-6

463-00-3

504-29-0

6020-87-7

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Chemistry

The Molecular Structure of Cyanamide (CAS NO.420-04-2):

Empirical Formula: CH₂N₂
Molecular Weight: 42.04
IUPAC Name: cyanamide
Appearance: white crystalline solid
Nominal Mass: 42 Da
Average Mass: 42.04 Da
Monoisotopic Mass: 42.021798 Da
Index of Refraction: 1.396
Molar Refractivity: 10.13 cm³
Molar Volume: 42.1 cm³
Surface Tension: 45.3 dyne/cm
Density: 0.998 g/cm³
Flash Point: 1.2 °C
Enthalpy of Vaporization: 49.61 kJ/mol
Boiling Point: 258.5 °C at 760 mmHg
Vapour Pressure: 0.0137 mmHg at 25°C
Storage temp: 2-8°C
Water Solubility: 775 g/L
Sensitive: Hygroscopic
Product Categories: Pharmaceutical Intermediates;Inorganics;C1 to C5;Cyanides/Nitriles;Nitrogen Compounds
Stability: Unstable - heat sensitive. Incompatible with strong oxidizing agents, strong reducing agents, bases, acids, iron and its salts, steel, brass, lead, moisture. Reacts with acids to produce very toxic gas
InChI
InChI=1/CH2N2/c2-1-3/h2H2
Smiles
C(N)#N
Synonyms: MeSH Heading ; Cyanamide [JAN] ; 4-03-00-00145 (Beilstein Handbook Reference) ; Alzogur ; Amidocyanogen ; BRN 1732569 ; Carbamonitrile ; Carbimide ; Caswell No. 485A ; Cyanoamine ; Cyanogen nitride ; Cyanogenamide ; Deurbraak ; Dormex ; EINECS 206-992-3 ; EPA Pesticide Chemical Code 014002 ; HSDB 1550 ; Hydrogen cyanamide ; N-Cyanoamine ; UNII-21CP7826LC

Uses

Cyanamide (CAS NO.420-04-2) is used as industrial raw materials, pharmaceutical, pesticide intermediates, agricultural fertilizers, plant regulators and food additives, etc.

Production

Cyanamide (420-04-2) is produced by hydrolysis of calcium cyanamide, which in turn is prepared from calcium carbide via the Frank-Caro process. The main reaction exhibited by cyanamide involves additions of protic reagents. Water, hydrogen sulfide , and hydrogen selenide add to give urea, thiourea, and selenourea, respectively.

Toxicity Data With Reference

1.	orl-rat LD50:125 mg/kg	MEIEDD Merck Index. 10 (1983),383.
2.	ihl-rat LCLo:86 mg/m3/4H	85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,40.
3.	skn-rat LD50:84 mg/kg	85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,40.
4.	ipr-rat LDLo:200 mg/kg	PSEBAA Proceedings of the Society for Experimental Biology and Medicine. 54 (1943),254.
5.	ipr-mus LD50:200 mg/kg	NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD277-689 .
6.	skn-rbt LD50:590 mg/kg	34ZIAG Toxicology of Drugs and Chemicals ,Deichmann, W.B.,New York, NY.: Academic Press, Inc.,1969,190.

Consensus Reports

Cyanamide (420-04-2) is reported in EPA TSCA Inventory. Cyanide and its compounds are on the Community Right-To-Know List.

Safety Profile

Hazard Codes: Toxic T
Risk Statements: 21-25-36/38-43
R21: Harmful in contact with skin.
R25: Toxic if swallowed.
R36/38: Irritating to eyes and skin.
R43: May cause sensitization by skin contact.
Safety Statements: 3-22-36/37-45
S3: Keep in a cool place.
S22: Do not breathe dust.
S36/37: Wear suitable protective clothing and gloves.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 2
RTECS: GS5950000
HazardClass: 8
PackingGroup: III
Poison by ingestion, inhalation, and intraperitoneal routes. Moderately toxic by skin contact. Experimental reproductive effects. Combustible when exposed to heat or flame. .

Standards and Recommendations

OSHA PEL: TWA 2 mg/m³
ACGIH TLV: TWA 2 mg/m³

Specification

1、Fire Fighting Measures
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.
2、Handling and Storage
Handling: Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Storage: Store in a tightly closed container. Store in a dry area. Keep refrigerated. (Store below 4°C/39°F.)