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알로퓨리놀 구조식 이미지
카스 번호:
포뮬러 무게:
MOL 파일:

알로퓨리놀 속성

>300 °C (lit.)
끓는 점
250.36°C (rough estimate)
1.4295 (rough estimate)
1.8500 (estimate)
저장 조건
1 M NaOH: soluble50mg/mL, clear to very slightly hazy, colorless to faintly yellow
물리적 상태
산도 계수 (pKa)
10.2(at 25℃)
White or almost white
0.35 g/L (25 ºC)
CAS 데이터베이스
315-30-0(CAS DataBase Reference)
Allopurinol (315-30-0)
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 T,Xi,Xn
위험 카페고리 넘버 25-43-36/37/38-20/21/22
안전지침서 28-36/37-45-36/37/39-26-24-36
유엔번호(UN No.) UN 2811 6.1/PG 3
WGK 독일 2
RTECS 번호 UR0785000
위험 등급 6.1
포장분류 III
HS 번호 29335990
유해 물질 데이터 315-30-0(Hazardous Substances Data)
독성 LD50 oral in mouse: 78mg/kg
기존화학 물질 KE-29924
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H301 삼키면 유독함 급성 독성 물질 - 경구 구분 3 위험 P264, P270, P301+P310, P321, P330,P405, P501
H317 알레르기성 피부 반응을 일으킬 수 있음 피부 과민성 물질 구분 1 경고 P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P264 취급 후에는 손을 철저히 씻으시오.
P264 취급 후에는 손을 철저히 씻으시오.
P270 이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.
P272 작업장 밖으로 오염된 의복을 반출하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P321 (…) 처치를 하시오.
P301+P310 삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.
P405 밀봉하여 저장하시오.
P501 ...에 내용물 / 용기를 폐기 하시오.

알로퓨리놀 MSDS


알로퓨리놀 C화학적 특성, 용도, 생산

화학적 성질

White to Off-White Solid


Zyloprim ,Burroughs-Wellcome ,US ,1966


Allopurinol does not reduce serum uric acid levels by increasing renal uric acid excretion; instead it lowers plasma urate levels by inhibiting the final steps in uric acid biosynthesis.
Uric acid in humans is formed primarily by xanthine oxidase-catalyzed oxidation of hypoxanthine and xanthine to uric acid. Allopurinol (8) and its primary metabolite, alloxanthine (9) [CAS: 2465-59-0], are inhibitors of xanthine oxidase. Inhibition of the last two steps in uric acid biosynthesis by blocking xanthine oxidase reduces the plasma concentration and urinary excretion of uric acid and increases the plasma levels and renal excretion of the more soluble oxypurine precursors. Normally, in humans the urinary purine content is almost solely uric acid; treatment with allopurinol results in the urinary excretion of hypoxanthine, xanthine, and uric acid, each with its independent solubility. Lowering the uric acid concentration in plasma below its limit of solubility facilitates the dissolution of uric acid deposits. The effectiveness of allopurinol in the treatment of gout and hyperuricemia that results from hematogical disorders and antineoplastic therapy has been demonstrated.


Xanthine oxidase inhibitor; decreases uric acid production. Used in treatment of hyperuricemia and chronic gout. Antiurolithic


antihyperuricemia, antigout, antiurolithic


Allopurinol (Zyloprim) is the drug of choice in the treatment of chronic tophaceous gout and is especially useful in patients whose treatment is complicated by renal insufficiency.

Manufacturing Process

3-Morpholino-2-cyanoacrylamide: A stirred mixture of cyanoacetamide (63 g), triethylorthoformate (134 g), morpholine (82.5 g) and acetonitrile (37.5 ml) was heated under reflux for 4 hours. The initial reflux temperature was 117°C and the final reflux temperature was 82°C.
At the end of the reflux period the mixture was cooled to 30°C and the heavy crystalline precipitate was collected and washed with 2 x 75 ml of ethanol. The product was dried in vacuum at 30°C. Wt = 111 g. Yield = 82%, MP 173- 175°C.
3-Aminopyrazole-4-carbxamide hemisulfate: To water (253 ml) at 60°C was added 3-morpholino-2-cyanoacrylamide (63.4 g) and 85% technical hydrazine hydrate (22.7 g). The mixture was rapidly heated to 95°C and the temperature was maintained at >90°C for 20 minutes. The mixture was then cooled to 60°C and the pH carefully adjusted to 1.5 by the addition of a mixture of sulfuric acid (45.7 g) and ice. The acidified reaction was cooled to 5°C and the crystalline product collected and washed with cold water (2 x 100 ml) and acetone (2 x 50 ml). The product was dried in vacuum at 80°C. Wt =5.8 g. Yield =95%, MP 237-239°C.
4-Hydroxypyrazolo[3,4-d]pyrimidine: A suspension of 3-aminopyrazole-4- carboxamide hemisulfate (113 g) in formamide (325 g) was stirred and heated to 145°C. The reaction was held at 145°C for 5 hours. The reaction was then cooled to 30°C and the product collected and washed with formamide (2 x 50 ml), water (2 x 150 ml) and acetone (2 x 100 ml). Wt of crude product = 79 g. The crude product was recrystallized by dissolution in a solution made from sodium hydroxide (25 g) in water (1,200 ml) with treatment at 25°C with charcoal (8 g), followed by reprecipitation by the addition of concentrated hydrochloric acid to pH 5. The product was collected and washed with cold water (2 x 300 ml), acetone (2 x 200 ml) and dried in vacuum at 60°C. Wt = 70 g. Yield = 80%.


Lopurin (Abbott); Lopurin (BASF); Zyloprim (Promethus).

Therapeutic Function

Xanthine oxidase inhibitor, Gout therapy

일반 설명

Odorless tasteless white microcrystalline powder.

공기와 물의 반응

Insoluble in water.

반응 프로필

Allopurinol is an aminoalcohol. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. Allopurinol darkens above 572° F, and at an indefinite high temperature, Allopurinol chars and decomposes. At 221° F, maximum stability occurs at pH 3.1- 3.4. Allopurinol decomposes in acidic and basic solutions.


Flash point data for Allopurinol are not available; however, Allopurinol is probably combustible.

Biochem/physiol Actions

Inhibitor of xanthine oxidase and de novo pyrimidine biosynthesis. A classical agent in treatment of hyperuricemia and gout.

Mechanism of action

Allopurinol, in contrast to the uricosuric drugs, reduces serum urate levels through a competitive inhibition of uric acid synthesis rather than by impairing renal urate reabsorption. This action is accomplished by inhibiting xanthine oxidase, the enzyme involved in the metabolism of hypoxanthine and xanthine to uric acid. After enzyme inhibition, the urinary and blood concentrations of uric acid are greatly reduced and there is a simultaneous increase in the excretion of the more soluble uric acid precursors, xanthine and hypoxanthine.
Allopurinol itself is metabolized by xanthine oxidase to form the active metabolite oxypurinol, which tends to accumulate after chronic administration of the parent drug.This phenomenon contributes to the therapeutic effectiveness of allopurinol in long-term use. Oxypurinol is probably responsible for the antigout effects of allopurinol. Oxypurinol itself is not administered because it is not well absorbed orally.


Allopurinol was synthesized in 1956 as part of a study of purine antagonists. It is well absorbed on oral administration, with peak plasma concentrations appearing within 1 hour. Decreases of uric acid can be observed within 24 to 48 hours. Excretion of allopurinol and its metabolite occurs primarily in the urine, with approximately 20% of a dose being excreted in the feces.

Clinical Use

Allopurinol is especially indicated in the treatment of chronic tophaceous gout, since patients receiving it show a pronounced decrease in their serum and urinary uric acid levels. Because it does not depend on renal mechanisms for its efficacy, allopurinol is particularly beneficial for patients who already have developed renal uric acid stones, patients with excessively high urate excretion (e.g., above 1,200 mg in 24 hours), patients with a variety of blood disorders (e.g., leukemia, polycythemia vera), patients with excessive tophus deposition, and patients who fail to respond well to the uricosuric drugs.
Allopurinol also inhibits reperfusion injury. This injury occurs when organs that either have been transplanted or have had their usual blood perfusion blocked are reperfused with blood or an appropriate buffer solution. The cause of this injury is local formation of free radicals, such as the superoxide anion, the hydroxyl free radical, or peroxynitrite. These substances are strong oxidants and are quite damaging to tissues.


Common toxicities associated with allopurinol administration include a variety of skin rashes, gastrointestinal upset, hepatotoxicity, and fever. These reactions are often sufficiently severe to dictate termination of drug therapy. It is advised that therapy not be initiated during an acute attack of gouty arthritis. As with the uricosuric drugs, therapy with allopurinol should be accompanied both by a sufficient increase in fluid intake to ensure water diuresis and by alkalinization of the urine. Prophylactic use of colchicine also helps to prevent acute attacks of gout that may be brought on during the initial period of allopurinol ingestion.

Safety Profile

Human poison by ingestion. Poison experimentally by intraperitoneal and subcutaneous routes. An experimental teratogen. Human systemic effects by ingestion: blood leukopenia, dermatitis, jaundice, muscle weakness, thrombocytopenia. When heated to decomposition it emits toxic fumes of NOx. An FDA proprietary drug used as a xanthine oxidase inhibitor.

Veterinary Drugs and Treatments

The principle veterinary uses for allopurinol are for the prophylactic treatment of recurrent uric acid uroliths and hyperuricosuric calcium oxalate uroliths in small animals. It has also been used in an attempt to treat gout in pet birds and reptiles.
Allopurinol has been recommended as an alternative treatment for canine Leishmaniasis. Although it appears to have clinical efficacy, it does not apparently clear the parasite in most dogs at usual dosages. Allopurinol may also be useful for American Trypanosomiasis.

신진 대사

Allopurinol is rapidly metabolized via oxidation and the formation of numerous ribonucleoside derivatives. The major oxidation metabolite, alloxanthine or oxypurinol, has a much longer half-life (18–30 hours versus 2–3 hours) than the parent drug and is an effective, although less potent, inhibitor of xanthine oxidase. The longer plasma half-life of alloxanthine results in an accumulation in the body during chronic administration, thus contributing significantly to the overall therapeutic effects of allopurinol.

주의 사항

Since allopurinol is metabolized by the hepatic microsomaldrug-metabolizing enzymes, coadministration ofdrugs also metabolized by this system should be donewith caution. Because allopurinol inhibits the oxidationof mercaptopurine and azathioprine, their individualadministered doses must be decreased by as much as75% when they are given together with allopurinol.Allopurinol may also increase the toxicity of other cytotoxicdrugs (e.g., vidarabine). The actions of allopurinolare not antagonized by the coadministration of salicylates.

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